replacing the old HTML user guide with a Sphinx-managed user guide
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
new file mode 100644
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--- /dev/null
+++ b/user_guide_src/source/changelog.rst
@@ -0,0 +1,2177 @@
+##########
+Change Log
+##########
+
+Version 2.1.0 (planned)
+=======================
+
+Release Date: Not Released
+
+- General Changes
+
+ - Added Android to the list of user agents.
+ - Added Windows 7 to the list of user platforms.
+ - Callback validation rules can now accept parameters like any other
+ validation rule.
+ - Ability to log certain error types, not all under a threshold.
+ - Added html_escape() to :doc:`Common
+ functions <general/common_functions>` to escape HTML output
+ for preventing XSS.
+ - Added support for pem,p10,p12,p7a,p7c,p7m,p7r,p7s,crt,crl,der,kdb,rsa,cer,sst,csr Certs to mimes.php.
+ - Added support pgp,gpg to mimes.php.
+ - Added support 3gp, 3g2, mp4, wmv, f4v, vlc Video files to mimes.php.
+ - Added support m4a, aac, m4u, xspf, au, ac3, flac, ogg Audio files to mimes.php.
+
+- Helpers
+
+ - Added increment_string() to :doc:`String
+ Helper <helpers/string_helper>` to turn "foo" into "foo-1"
+ or "foo-1" into "foo-2".
+ - Altered form helper - made action on form_open_multipart helper
+ function call optional. Fixes (#65)
+ - url_title() will now trim extra dashes from beginning and end.
+ - Improved speed of <a href="helpers/string_helper.html">String Helper</a>'s <b>random_string()</b> method
+ - Added XHTML Basic 1.1 doctype to <a href="helpers/html_helper.html">HTML Helper</a>.
+
+- Database
+
+ - Added a `CUBRID <http://www.cubrid.org/>`_ driver to the `Database
+ Driver <database/index>`. Thanks to the CUBRID team for
+ supplying this patch.
+ - Added a PDO driver to the <a href="database/index.html">Database Driver</a>.
+ - Typecast limit and offset in the :doc:`Database
+ Driver <database/queries>` to integers to avoid possible
+ injection.
+ - Added additional option 'none' for the optional third argument for
+ $this->db->like() in the :doc:`Database
+ Driver <database/active_record>`.
+ - Added <kbd>$this->db->insert_batch()</kbd> support to the OCI8 (Oracle) driver.
+
+- Libraries
+
+ - Changed $this->cart->insert() in the :doc:`Cart
+ Library <libraries/cart>` to return the Row ID if a single
+ item was inserted successfully.
+ - Added support to set an optional parameter in your callback rules
+ of validation using the :doc:`Form Validation
+ Library <libraries/form_validation>`.
+ - Driver children can be located in any package path.
+ - Added max_filename_increment config setting for Upload library.
+ - CI_Loader::_ci_autoloader() is now a protected method.
+ - Added is_unique to the :doc:`Form Validation
+ library <libraries/form_validation>`.
+ - Modified valid_ip() to use PHP's filter_var() when possible (>= PHP 5.2) in the <a href="libraries/form_validation.html">Form Validation</a> library.
+ - Added <kbd>$config['use_page_numbers']</kbd> to the <a href="libraries/pagination.html">Pagination library</a>, which enables real page numbers in the URI.
+ - Added TLS and SSL Encryption for SMTP.
+
+- Core
+
+ - Changed private functions in CI_URI to protected so MY_URI can
+ override them.
+ - Removed CI_CORE boolean constant from CodeIgniter.php (no longer Reactor and Core versions).
+
+Bug fixes for 2.1.0
+-------------------
+
+- Unlink raised an error if cache file did not exist when you try to delete it.
+- Fixed #378 Robots identified as regular browsers by the User Agent
+ class.
+- If a config class was loaded first then a library with the same name
+ is loaded, the config would be ignored.
+- Fixed a bug (Reactor #19) where 1) the 404_override route was being
+ ignored in some cases, and 2) auto-loaded libraries were not
+ available to the 404_override controller when a controller existed
+ but the requested method did not.
+- Fixed a bug (Reactor #89) where MySQL export would fail if the table
+ had hyphens or other non alphanumeric/underscore characters.
+- Fixed a bug (#200) where MySQL queries would be malformed after
+ calling count_all() then db->get()
+- Fixed bug #105 that stopped query errors from being logged unless database debugging was enabled
+- Fixed a bug (#181) where a mis-spelling was in the form validation
+ language file.
+- Fixed a bug (#160) - Removed unneeded array copy in the file cache
+ driver.
+- Fixed a bug (#150) - field_data() now correctly returns column
+ length.
+- Fixed a bug (#8) - load_class() now looks for core classes in
+ APPPATH first, allowing them to be replaced.
+- Fixed a bug (#24) - ODBC database driver called incorrect parent in
+ __construct().
+- Fixed a bug (#85) - OCI8 (Oracle) database escape_str() function did
+ not escape correct.
+- Fixed a bug (#344) - Using schema found in <a href="libraries/sessions.html">Saving Session Data to a Database</a>, system would throw error "user_data does not have a default value" when deleting then creating a session.
+- Fixed a bug (#112) - OCI8 (Oracle) driver didn't pass the configured database character set when connecting.
+- Fixed a bug (#182) - OCI8 (Oracle) driver used to re-execute the statement whenever num_rows() is called.
+- Fixed a bug (#82) - WHERE clause field names in the DB <samp>update_string()</samp> method were not escaped, resulting in failed queries in some cases.
+- Fixed a bug (#89) - Fix a variable type mismatch in DB <samp>display_error()</samp> where an array is expected, but a string could be set instead.
+- Fixed a bug (#467) - Suppress warnings generated from get_magic_quotes_gpc() (deprecated in PHP 5.4)
+- Fixed a bug (#484) - First time _csrf_set_hash() is called, hash is never set to the cookie (in Security.php).
+
+Version 2.0.3
+=============
+
+Release Date: August 20, 2011
+
+- Security
+
+ - An improvement was made to the MySQL and MySQLi drivers to prevent
+ exposing a potential vector for SQL injection on sites using
+ multi-byte character sets in the database client connection.
+ An incompatibility in PHP versions < 5.2.3 and MySQL < 5.0.7 with
+ *mysql_set_charset()* creates a situation where using multi-byte
+ character sets on these environments may potentially expose a SQL
+ injection attack vector. Latin-1, UTF-8, and other "low ASCII"
+ character sets are unaffected on all environments.
+
+ If you are running or considering running a multi-byte character
+ set for your database connection, please pay close attention to
+ the server environment you are deploying on to ensure you are not
+ vulnerable.
+
+- General Changes
+
+ - Fixed a bug where there was a misspelling within a code comment in
+ the index.php file.
+ - Added Session Class userdata to the output profiler. Additionally,
+ added a show/hide toggle on HTTP Headers, Session Data and Config
+ Variables.
+ - Removed internal usage of the EXT constant.
+ - Visual updates to the welcome_message view file and default error
+ templates. Thanks to `danijelb <https://bitbucket.org/danijelb>`_
+ for the pull request.
+ - Added insert_batch() function to the PostgreSQL database driver.
+ Thanks to epallerols for the patch.
+ - Added "application/x-csv" to mimes.php.
+ - Added CSRF protection URI whitelisting.
+ - Fixed a bug where `Email library <libraries/email>`
+ attachments with a "." in the name would using invalid MIME-types.
+ - Added support for
+ pem,p10,p12,p7a,p7c,p7m,p7r,p7s,crt,crl,der,kdb,rsa,cer,sst,csr
+ Certs to mimes.php.
+ - Added support pgp,gpg to mimes.php.
+ - Added support 3gp, 3g2, mp4, wmv, f4v, vlc Video files to
+ mimes.php.
+ - Added support m4a, aac, m4u, xspf, au, ac3, flac, ogg Audio files
+ to mimes.php.
+
+- Helpers
+
+ - Added an optional third parameter to heading() which allows adding
+ html attributes to the rendered heading tag.
+ - form_open() now only adds a hidden (Cross-site Reference Forgery)
+ protection field when the form's action is internal and is set to
+ the post method. (Reactor #165)
+ - Re-worked plural() and singular() functions in the :doc:`Inflector
+ helper <helpers/inflector_helper>` to support considerably
+ more words.
+
+- Libraries
+
+ - Altered Session to use a longer match against the user_agent
+ string. See upgrade notes if using database sessions.
+ - Added $this->db->set_dbprefix() to the :doc:`Database
+ Driver <database/queries>`.
+ - Changed $this->cart->insert() in the :doc:`Cart
+ Library <libraries/cart>` to return the Row ID if a single
+ item was inserted successfully.
+ - Added $this->load->get_var() to the :doc:`Loader
+ library <libraries/loader>` to retrieve global vars set with
+ $this->load->view() and $this->load->vars().
+ - Changed $this->db->having() to insert quotes using escape() rather
+ than escape_str().
+
+Bug fixes for 2.0.3
+-------------------
+
+- Added ENVIRONMENT to reserved constants. (Reactor #196)
+- Changed server check to ensure SCRIPT_NAME is defined. (Reactor #57)
+- Removed APPPATH.'third_party' from the packages autoloader to negate
+ needless file stats if no packages exist or if the developer does not
+ load any other packages by default.
+- Fixed a bug (Reactor #231) where Sessions Library database table
+ example SQL did not contain an index on last_activity. See :doc:`Upgrade
+ Notes <installation/upgrade_203>`.
+- Fixed a bug (Reactor #229) where the Sessions Library example SQL in
+ the documentation contained incorrect SQL.
+- Fixed a bug (Core #340) where when passing in the second parameter to
+ $this->db->select(), column names in subsequent queries would not be
+ properly escaped.
+- Fixed issue #199 - Attributes passed as string does not include a
+ space between it and the opening tag.
+- Fixed a bug where the method $this->cart->total_items() from :doc:`Cart
+ Library <libraries/cart>` now returns the sum of the quantity
+ of all items in the cart instead of your total count.
+- Fixed a bug where not setting 'null' when adding fields in db_forge
+ for mysql and mysqli drivers would default to NULL instead of NOT
+ NULL as the docs suggest.
+- Fixed a bug where using $this->db->select_max(),
+ $this->db->select_min(), etc could throw notices. Thanks to w43l for
+ the patch.
+- Replace checks for STDIN with php_sapi_name() == 'cli' which on the
+ whole is more reliable. This should get parameters in crontab
+ working.
+
+Version 2.0.2
+=============
+
+Release Date: April 7, 2011
+Hg Tag: v2.0.2
+
+- General changes
+
+ - The :doc:`Security library <./libraries/security>` was moved to
+ the core and is now loaded automatically. Please remove your
+ loading calls.
+ - The CI_SHA class is now deprecated. All supported versions of PHP
+ provide a sha1() function.
+ - constants.php will now be loaded from the environment folder if
+ available.
+ - Added language key error logging
+ - Made Environment Support optional. Comment out or delete the
+ constant to stop environment checks.
+ - Added Environment Support for Hooks.
+ - Added CI\_ Prefix to the :doc:`Cache driver <libraries/caching>`.
+ - Added :doc:`CLI usage <./general/cli>` documentation.
+
+- Helpers
+
+ - Removed the previously deprecated dohash() from the :doc:`Security
+ helper <./helpers/security_helper>`; use do_hash() instead.
+ - Changed the 'plural' function so that it doesn't ruin the
+ captalization of your string. It also take into consideration
+ acronyms which are all caps.
+
+- Database
+
+ - $this->db->count_all_results() will now return an integer
+ instead of a string.
+
+Bug fixes for 2.0.2
+-------------------
+
+- Fixed a bug (Reactor #145) where the Output Library had
+ parse_exec_vars set to protected.
+- Fixed a bug (Reactor #80) where is_really_writable would create an
+ empty file when on Windows or with safe_mode enabled.
+- Fixed various bugs with User Guide.
+- Added is_cli_request() method to documentation for :doc:`Input
+ class <libraries/input>`.
+- Added form_validation_lang entries for decimal, less_than and
+ greater_than.
+- `Fixed issue
+ #153 <https://bitbucket.org/ellislab/codeigniter-reactor/issue/153/escape-str-bug-in-mssql-driver>`_
+ Escape Str Bug in MSSQL driver.
+- `Fixed issue
+ #172 <https://bitbucket.org/ellislab/codeigniter-reactor/issue/172/bug-in-chrome-and-form_open-in-201>`_
+ Google Chrome 11 posts incorrectly when action is empty.
+
+Version 2.0.1
+=============
+
+Release Date: March 15, 2011
+Hg Tag: v2.0.1
+
+- General changes
+
+ - Added $config['cookie_secure'] to the config file to allow
+ requiring a secure (HTTPS) in order to set cookies.
+ - Added the constant CI_CORE to help differentiate between Core:
+ TRUE and Reactor: FALSE.
+ - Added an ENVIRONMENT constant in index.php, which affects PHP
+ error reporting settings, and optionally, which configuration
+ files are loaded (see below). Read more on the `Handling
+ Environments <general/environments>` page.
+ - Added support for
+ :ref:`environment-specific <config-environments>`
+ configuration files.
+
+- Libraries
+
+ - Added decimal, less_than and greater_than rules to the `Form
+ validation Class <libraries/form_validation>`.
+ - :doc:`Input Class <libraries/input>` methods post() and get()
+ will now return a full array if the first argument is not
+ provided.
+ - Secure cookies can now be made with the set_cookie() helper and
+ :doc:`Input Class <libraries/input>` method.
+ - Added set_content_type() to :doc:`Output
+ Class <libraries/output>` to set the output Content-Type
+ HTTP header based on a MIME Type or a config/mimes.php array key.
+ - :doc:`Output Class <libraries/output>` will now support method
+ chaining.
+
+- Helpers
+
+ - Changed the logic for form_open() in :doc:`Form
+ helper <helpers/form_helper>`. If no value is passed it will
+ submit to the current URL.
+
+Bug fixes for 2.0.1
+-------------------
+
+- CLI requests can now be run from any folder, not just when CD'ed next
+ to index.php.
+- Fixed issue #41: Added audio/mp3 mime type to mp3.
+- Fixed a bug (Core #329) where the file caching driver referenced the
+ incorrect cache directory.
+- Fixed a bug (Reactor #69) where the SHA1 library was named
+ incorrectly.
+
+Version 2.0.0
+=============
+
+Release Date: January 28, 2011
+Hg Tag: v2.0.0
+
+- General changes
+
+ - PHP 4 support is removed. CodeIgniter now requires PHP 5.1.6.
+ - Scaffolding, having been deprecated for a number of versions, has
+ been removed.
+ - Plugins have been removed, in favor of Helpers. The CAPTCHA plugin
+ has been converted to a Helper and
+ :doc:`documented <./helpers/captcha_helper>`. The JavaScript
+ calendar plugin was removed due to the ready availability of great
+ JavaScript calendars, particularly with jQuery.
+ - Added new special Library type:
+ :doc:`Drivers <./general/drivers>`.
+ - Added full query-string support. See the config file for details.
+ - Moved the application folder outside of the system folder.
+ - Moved system/cache and system/logs directories to the application
+ directory.
+ - Added routing overrides to the main index.php file, enabling the
+ normal routing to be overridden on a per "index" file basis.
+ - Added the ability to set config values (or override config values)
+ directly from data set in the main index.php file. This allows a
+ single application to be used with multiple front controllers,
+ each having its own config values.
+ - Added $config['directory_trigger'] to the config file so that a
+ controller sub-directory can be specified when running _GET
+ strings instead of URI segments.
+ - Added ability to set "Package" paths - specific paths where the
+ Loader and Config classes should try to look first for a requested
+ file. This allows distribution of sub-applications with their own
+ libraries, models, config files, etc. in a single "package"
+ directory. See the :doc:`Loader class <libraries/loader>`
+ documentation for more details.
+ - In-development code is now hosted at
+ `BitBucket <http://bitbucket.org/ellislab/codeigniter-reactor/>`_.
+ - Removed the deprecated Validation Class.
+ - Added CI\_ Prefix to all core classes.
+ - Package paths can now be set in application/config/autoload.php.
+ - `Upload library <libraries/file_uploading>` file_name can
+ now be set without an extension, the extension will be taken from
+ the uploaded file instead of the given name.
+ - In :doc:`Database Forge <database/forge>` the name can be omitted
+ from $this->dbforge->modify_column()'s 2nd param if you aren't
+ changing the name.
+ - $config['base_url'] is now empty by default and will guess what
+ it should be.
+ - Enabled full Command Line Interface compatibility with
+ config['uri_protocol'] = 'CLI';.
+
+- Libraries
+
+ - Added a :doc:`Cache driver <libraries/caching>` with APC,
+ memcached, and file-based support.
+ - Added $prefix, $suffix and $first_url properties to :doc:`Pagination
+ library <./libraries/pagination>`.
+ - Added the ability to suppress first, previous, next, last, and
+ page links by setting their values to FALSE in the :doc:`Pagination
+ library <./libraries/pagination>`.
+ - Added :doc:`Security library <./libraries/security>`, which now
+ contains the xss_clean function, filename_security function and
+ other security related functions.
+ - Added CSRF (Cross-site Reference Forgery) protection to the
+ :doc:`Security library <./libraries/security>`.
+ - Added $parse_exec_vars property to Output library.
+ - Added ability to enable / disable individual sections of the
+ :doc:`Profiler <general/profiling>`
+ - Added a wildcard option $config['allowed_types'] = '\*' to the
+ :doc:`File Uploading Class <./libraries/file_uploading>`.
+ - Added an 'object' config variable to the XML-RPC Server library so
+ that one can specify the object to look for requested methods,
+ instead of assuming it is in the $CI superobject.
+ - Added "is_object" into the list of unit tests capable of being
+ run.
+ - Table library will generate an empty cell with a blank string, or
+ NULL value.
+ - Added ability to set tag attributes for individual cells in the
+ Table library
+ - Added a parse_string() method to the :doc:`Parser
+ Class <libraries/parser>`.
+ - Added HTTP headers and Config information to the
+ :doc:`Profiler <general/profiling>` output.
+ - Added Chrome and Flock to the list of detectable browsers by
+ browser() in the :doc:`User Agent Class <libraries/user_agent>`.
+ - The :doc:`Unit Test Class <libraries/unit_testing>` now has an
+ optional "notes" field available to it, and allows for discrete
+ display of test result items using
+ $this->unit->set_test_items().
+ - Added a $xss_clean class variable to the XMLRPC library, enabling
+ control over the use of the Security library's xss_clean()
+ method.
+ - Added a download() method to the :doc:`FTP
+ library <libraries/ftp>`
+ - Changed do_xss_clean() to return FALSE if the uploaded file
+ fails XSS checks.
+ - Added stripslashes() and trim()ing of double quotes from $_FILES
+ type value to standardize input in Upload library.
+ - Added a second parameter (boolean) to
+ $this->zip->read_dir('/path/to/directory', FALSE) to remove the
+ preceding trail of empty folders when creating a Zip archive. This
+ example would contain a zip with "directory" and all of its
+ contents.
+ - Added ability in the Image Library to handle PNG transparency for
+ resize operations when using the GD lib.
+ - Modified the Session class to prevent use if no encryption key is
+ set in the config file.
+ - Added a new config item to the Session class
+ sess_expire_on_close to allow sessions to auto-expire when the
+ browser window is closed.
+ - Improved performance of the Encryption library on servers where
+ Mcrypt is available.
+ - Changed the default encryption mode in the Encryption library to
+ CBC.
+ - Added an encode_from_legacy() method to provide a way to
+ transition encrypted data from CodeIgniter 1.x to CodeIgniter 2.x.
+ Please see the :doc:`upgrade
+ instructions <./installation/upgrade_200>` for details.
+ - Altered Form_Validation library to allow for method chaining on
+ set_rules(), set_message() and set_error_delimiters()
+ functions.
+ - Altered Email Library to allow for method chaining.
+ - Added request_headers(), get_request_header() and
+ is_ajax_request() to the input class.
+ - Altered :doc:`User agent library <libraries/user_agent>` so that
+ is_browser(), is_mobile() and is_robot() can optionally check
+ for a specific browser or mobile device.
+ - Altered :doc:`Input library <libraries/input>` so that post() and
+ get() will return all POST and GET items (respectively) if there
+ are no parameters passed in.
+
+- Database
+
+ - :doc:`database configuration <./database/configuration>`.
+ - Added autoinit value to :doc:`database
+ configuration <./database/configuration>`.
+ - Added stricton value to :doc:`database
+ configuration <./database/configuration>`.
+ - Added database_exists() to the :doc:`Database Utilities
+ Class <database/utilities>`.
+ - Semantic change to db->version() function to allow a list of
+ exceptions for databases with functions to return version string
+ instead of specially formed SQL queries. Currently this list only
+ includes Oracle and SQLite.
+ - Fixed a bug where driver specific table identifier protection
+ could lead to malformed queries in the field_data() functions.
+ - Fixed a bug where an undefined class variable was referenced in
+ database drivers.
+ - Modified the database errors to show the filename and line number
+ of the problematic query.
+ - Removed the following deprecated functions: orwhere, orlike,
+ groupby, orhaving, orderby, getwhere.
+ - Removed deprecated _drop_database() and _create_database()
+ functions from the db utility drivers.
+ - Improved dbforge create_table() function for the Postgres driver.
+
+- Helpers
+
+ - Added convert_accented_characters() function to :doc:`text
+ helper <./helpers/text_helper>`.
+ - Added accept-charset to the list of inserted attributes of
+ form_open() in the :doc:`Form Helper <helpers/form_helper>`.
+ - Deprecated the dohash() function in favour of do_hash() for
+ naming consistency.
+ - Non-backwards compatible change made to get_dir_file_info() in
+ the :doc:`File Helper <helpers/file_helper>`. No longer recurses
+ by default so as to encourage responsible use (this function can
+ cause server performance issues when used without caution).
+ - Modified the second parameter of directory_map() in the
+ :doc:`Directory Helper <helpers/directory_helper>` to accept an
+ integer to specify recursion depth.
+ - Modified delete_files() in the :doc:`File
+ Helper <helpers/file_helper>` to return FALSE on failure.
+ - Added an optional second parameter to byte_format() in the
+ :doc:`Number Helper <helpers/number_helper>` to allow for decimal
+ precision.
+ - Added alpha, and sha1 string types to random_string() in the
+ :doc:`String Helper <helpers/string_helper>`.
+ - Modified prep_url() so as to not prepend http:// if the supplied
+ string already has a scheme.
+ - Modified get_file_info in the file helper, changing filectime()
+ to filemtime() for dates.
+ - Modified smiley_js() to add optional third parameter to return
+ only the javascript with no script tags.
+ - The img() function of the :doc:`HTML
+ helper <./helpers/html_helper>` will now generate an empty
+ string as an alt attribute if one is not provided.
+ - If CSRF is enabled in the application config file, form_open()
+ will automatically insert it as a hidden field.
+ - Added sanitize_filename() into the :doc:`Security
+ helper <./helpers/security_helper>`.
+ - Added ellipsize() to the :doc:`Text
+ Helper <./helpers/text_helper>`
+ - Added elements() to the :doc:`Array
+ Helper <./helpers/array_helper>`
+
+- Other Changes
+
+ - Added an optional second parameter to show_404() to disable
+ logging.
+ - Updated loader to automatically apply the sub-class prefix as an
+ option when loading classes. Class names can be prefixed with the
+ standard "CI\_" or the same prefix as the subclass prefix, or no
+ prefix at all.
+ - Increased randomness with is_really_writable() to avoid file
+ collisions when hundreds or thousands of requests occur at once.
+ - Switched some DIR_WRITE_MODE constant uses to FILE_WRITE_MODE
+ where files and not directories are being operated on.
+ - get_mime_by_extension() is now case insensitive.
+ - Added "default" to the list :doc:`Reserved
+ Names <general/reserved_names>`.
+ - Added 'application/x-msdownload' for .exe files and
+ ''application/x-gzip-compressed' for .tgz files to
+ config/mimes.php.
+ - Updated the output library to no longer compress output or send
+ content-length headers if the server runs with
+ zlib.output_compression enabled.
+ - Eliminated a call to is_really_writable() on each request unless
+ it is really needed (Output caching)
+ - Documented append_output() in the :doc:`Output
+ Class <libraries/output>`.
+ - Documented a second argument in the decode() function for the
+ :doc:`Encryption Class <libraries/encryption>`.
+ - Documented db->close().
+ - Updated the router to support a default route with any number of
+ segments.
+ - Moved _remove_invisible_characters() function from the
+ :doc:`Security Library <libraries/security>` to :doc:`common
+ functions. <general/common_functions>`
+ - Added audio/mpeg3 as a valid mime type for MP3.
+
+Bug fixes for 2.0.0
+-------------------
+
+- Fixed a bug where you could not change the User-Agent when sending
+ email.
+- Fixed a bug where the Output class would send incorrect cached output
+ for controllers implementing their own _output() method.
+- Fixed a bug where a failed query would not have a saved query
+ execution time causing errors in the Profiler
+- Fixed a bug that was writing log entries when multiple identical
+ helpers and plugins were loaded.
+- Fixed assorted user guide typos or examples (#10693, #8951, #7825,
+ #8660, #7883, #6771, #10656).
+- Fixed a language key in the profiler: "profiler_no_memory_usage"
+ to "profiler_no_memory".
+- Fixed an error in the Zip library that didn't allow downloading on
+ PHP 4 servers.
+- Fixed a bug in the Form Validation library where fields passed as
+ rule parameters were not being translated (#9132)
+- Modified inflector helper to properly pluralize words that end in
+ 'ch' or 'sh'
+- Fixed a bug in xss_clean() that was not allowing hyphens in query
+ strings of submitted URLs.
+- Fixed bugs in get_dir_file_info() and get_file_info() in the
+ File Helper with recursion, and file paths on Windows.
+- Fixed a bug where Active Record override parameter would not let you
+ disable Active Record if it was enabled in your database config file.
+- Fixed a bug in reduce_double_slashes() in the String Helper to
+ properly remove duplicate leading slashes (#7585)
+- Fixed a bug in values_parsing() of the XML-RPC library which
+ prevented NULL variables typed as 'string' from being handled
+ properly.
+- Fixed a bug were form_open_multipart() didn't accept string
+ attribute arguments (#10930).
+- Fixed a bug (#10470) where get_mime_by_extension() was case
+ sensitive.
+- Fixed a bug where some error messages for the SQLite and Oracle
+ drivers would not display.
+- Fixed a bug where files created with the Zip Library would result in
+ file creation dates of 1980.
+- Fixed a bug in the Session library that would result in PHP error
+ when attempting to store values with objects.
+- Fixed a bug where extending the Controller class would result in a
+ fatal PHP error.
+- Fixed a PHP Strict Standards Error in the index.php file.
+- Fixed a bug where getimagesize() was being needlessly checked on
+ non-image files in is_allowed_type().
+- Fixed a bug in the Encryption library where an empty key was not
+ triggering an error.
+- Fixed a bug in the Email library where CC and BCC recipients were not
+ reset when using the clear() method (#109).
+- Fixed a bug in the URL Helper where prep_url() could cause a PHP
+ error on PHP versions < 5.1.2.
+- Added a log message in core/output if the cache directory config
+ value was not found.
+- Fixed a bug where multiple libraries could not be loaded by passing
+ an array to load->library()
+- Fixed a bug in the html helper where too much white space was
+ rendered between the src and alt tags in the img() function.
+- Fixed a bug in the profilers _compile_queries() function.
+- Fixed a bug in the date helper where the DATE_ISO8601 variable was
+ returning an incorrectly formatted date string.
+
+Version 1.7.2
+=============
+
+Release Date: September 11, 2009
+Hg Tag: v1.7.2
+
+- Libraries
+
+ - Added a new :doc:`Cart Class <libraries/cart>`.
+ - Added the ability to pass $config['file_name'] for the :doc:`File
+ Uploading Class <libraries/file_uploading>` and rename the
+ uploaded file.
+ - Changed order of listed user-agents so Safari would more
+ accurately report itself. (#6844)
+
+- Database
+
+ - Switched from using gettype() in escape() to is\_* methods, since
+ future PHP versions might change its output.
+ - Updated all database drivers to handle arrays in escape_str()
+ - Added escape_like_str() method for escaping strings to be used
+ in LIKE conditions
+ - Updated Active Record to utilize the new LIKE escaping mechanism.
+ - Added reconnect() method to DB drivers to try to keep alive /
+ reestablish a connection after a long idle.
+ - Modified MSSQL driver to use mssql_get_last_message() for error
+ messages.
+
+- Helpers
+
+ - Added form_multiselect() to the :doc:`Form
+ helper <helpers/form_helper>`.
+ - Modified form_hidden() in the :doc:`Form
+ helper <helpers/form_helper>` to accept multi-dimensional
+ arrays.
+ - Modified form_prep() in the :doc:`Form
+ helper <helpers/form_helper>` to keep track of prepped
+ fields to avoid multiple prep/mutation from subsequent calls which
+ can occur when using Form Validation and form helper functions to
+ output form fields.
+ - Modified directory_map() in the :doc:`Directory
+ helper <helpers/directory_helper>` to allow the inclusion of
+ hidden files, and to return FALSE on failure to read directory.
+ - Modified the :doc:`Smiley helper <helpers/smiley_helper>` to work
+ with multiple fields and insert the smiley at the last known
+ cursor position.
+
+- General
+
+ - Compatible with PHP 5.3.0
+ - Modified :doc:`show_error() <general/errors>` to allow sending
+ of HTTP server response codes.
+ - Modified :doc:`show_404() <general/errors>` to send 404 status
+ code, removing non-CGI compatible header() statement from
+ error_404.php template.
+ - Added set_status_header() to the :doc:`Common
+ functions <general/common_functions>` to allow use when the
+ Output class is unavailable.
+ - Added is_php() to :doc:`Common
+ functions <general/common_functions>` to facilitate PHP
+ version comparisons.
+ - Added 2 CodeIgniter "cheatsheets" (thanks to DesignFellow.com for
+ this contribution).
+
+Bug fixes for 1.7.2
+-------------------
+
+- Fixed assorted user guide typos or examples (#6743, #7214, #7516,
+ #7287, #7852, #8224, #8324, #8349).
+- Fixed a bug in the Form Validation library where multiple callbacks
+ weren't working (#6110)
+- doctype helper default value was missing a "1".
+- Fixed a bug in the language class when outputting an error for an
+ unfound file.
+- Fixed a bug in the Calendar library where the shortname was output
+ for "May".
+- Fixed a bug with ORIG_PATH_INFO that was allowing URIs of just a
+ slash through.
+- Fixed a fatal error in the Oracle and ODBC drivers (#6752)
+- Fixed a bug where xml_from_result() was checking for a nonexistent
+ method.
+- Fixed a bug where Database Forge's add_column and modify_column
+ were not looping through when sent multiple fields.
+- Fixed a bug where the File Helper was using '/' instead of the
+ DIRECTORY_SEPARATOR constant.
+- Fixed a bug to prevent PHP errors when attempting to use sendmail on
+ servers that have manually disabled the PHP popen() function.
+- Fixed a bug that would cause PHP errors in XML-RPC data if the PHP
+ data type did not match the specified XML-RPC type.
+- Fixed a bug in the XML-RPC class with parsing dateTime.iso8601 data
+ types.
+- Fixed a case sensitive string replacement in xss_clean()
+- Fixed a bug in form_textarea() where form data was not prepped
+ correctly.
+- Fixed a bug in form_prep() causing it to not preserve entities in
+ the user's original input when called back into a form element
+- Fixed a bug in _protect_identifiers() where the swap prefix
+ ($swap_pre) was not being observed.
+- Fixed a bug where the 400 status header sent with the 'disallowed URI
+ characters' was not compatible with CGI environments.
+- Fixed a bug in the typography class where heading tags could have
+ paragraph tags inserted when using auto_typography().
+
+Version 1.7.1
+=============
+
+Release Date: February 10, 2009
+Hg Tag: 1.7.1
+
+- Libraries
+
+ - Fixed an arbitrary script execution security flaw (#6068) in the
+ Form Validation library (thanks to hkk)
+ - Changed default current page indicator in the Pagination library
+ to use <strong> instead of <b>
+ - A "HTTP/1.1 400 Bad Request" header is now sent when disallowed
+ characters are encountered.
+ - Added <big>, <small>, <q>, and <tt> to the Typography parser's
+ inline elements.
+ - Added more accurate error reporting for the Email library when
+ using sendmail.
+ - Removed a strict type check from the rotate() function of the
+ :doc:`Image Manipulation Class <libraries/image_lib>`.
+ - Added enhanced error checking in file saving in the Image library
+ when using the GD lib.
+ - Added an additional newline between multipart email headers and
+ the MIME message text for better compatibility with a variety of
+ MUAs.
+ - Made modest improvements to efficiency and accuracy of
+ explode_name() in the Image lib.
+
+- Database
+
+ - Added where_in to the list of expected arguments received by
+ delete().
+
+- Helpers
+
+ - Added the ability to have optgroups in form_dropdown() within the
+ :doc:`form helper <helpers/form_helper>`.
+ - Added a doctype() function to the :doc:`HTML
+ helper <helpers/html_helper>`.
+ - Added ability to force lowercase for url_title() in the :doc:`URL
+ helper <helpers/url_helper>`.
+ - Changed the default "type" of form_button() to "button" from
+ "submit" in the :doc:`form helper <helpers/form_helper>`.
+ - Changed redirect() in the URL helper to allow redirections to URLs
+ outside of the CI site.
+ - Updated get_cookie() to try to fetch the cookie using the global
+ cookie prefix if the requested cookie name doesn't exist.
+
+- Other Changes
+
+ - Improved security in xss_clean() to help prevent attacks
+ targeting Internet Explorer.
+ - Added 'application/msexcel' to config/mimes.php for .xls files.
+ - Added 'proxy_ips' config item to whitelist reverse proxy servers
+ from which to trust the HTTP_X_FORWARDED_FOR header to to
+ determine the visitor's IP address.
+ - Improved accuracy of Upload::is_allowed_filetype() for images
+ (#6715)
+
+Bug fixes for 1.7.1
+-------------------
+
+- Database
+
+ - Fixed a bug when doing 'random' on order_by() (#5706).
+ - Fixed a bug where adding a primary key through Forge could fail
+ (#5731).
+ - Fixed a bug when using DB cache on multiple databases (#5737).
+ - Fixed a bug where TRUNCATE was not considered a "write" query
+ (#6619).
+ - Fixed a bug where csv_from_result() was checking for a
+ nonexistent method.
+ - Fixed a bug _protect_identifiers() where it was improperly
+ removing all pipe symbols from items
+
+- Fixed assorted user guide typos or examples (#5998, #6093, #6259,
+ #6339, #6432, #6521).
+- Fixed a bug in the MySQLi driver when no port is specified
+- Fixed a bug (#5702), in which the field label was not being fetched
+ properly, when "matching" one field to another.
+- Fixed a bug in which identifers were not being escaped properly when
+ reserved characters were used.
+- Fixed a bug with the regular expression used to protect submitted
+ paragraph tags in auto typography.
+- Fixed a bug where double dashes within tag attributes were being
+ converted to em dash entities.
+- Fixed a bug where double spaces within tag attributes were being
+ converted to non-breaking space entities.
+- Fixed some accuracy issues with curly quotes in
+ Typography::format_characters()
+- Changed a few docblock comments to reflect actual return values.
+- Fixed a bug with high ascii characters in subject and from email
+ headers.
+- Fixed a bug in xss_clean() where whitespace following a validated
+ character entity would not be preserved.
+- Fixed a bug where HTML comments and <pre> tags were being parsed in
+ Typography::auto_typography().
+- Fixed a bug with non-breaking space cleanup in
+ Typography::auto_typography().
+- Fixed a bug in database escaping where a compound statement (ie:
+ SUM()) wasn't handled correctly with database prefixes.
+- Fixed a bug when an opening quote is preceded by a paragraph tag and
+ immediately followed by another tag.
+- Fixed a bug in the Text Helper affecting some locales where
+ word_censor() would not work on words beginning or ending with an
+ accented character.
+- Fixed a bug in the Text Helper character limiter where the provided
+ limit intersects the last word of the string.
+- Fixed a bug (#6342) with plural() in the Inflection helper with words
+ ending in "y".
+- Fixed bug (#6517) where Routed URI segments returned by
+ URI::rsegment() method were incorrect for the default controller.
+- Fixed a bug (#6706) in the Security Helper where xss_clean() was
+ using a deprecated second argument.
+- Fixed a bug in the URL helper url_title() function where trailing
+ periods were allowed at the end of a URL.
+- Fixed a bug (#6669) in the Email class when CRLF's are used for the
+ newline character with headers when used with the "mail" protocol.
+- Fixed a bug (#6500) where URI::A_filter_uri() was exit()ing an
+ error instead of using show_error().
+- Fixed a bug (#6592) in the File Helper where get_dir_file_info()
+ where recursion was not occurring properly.
+- Tweaked Typography::auto_typography() for some edge-cases.
+
+Version 1.7
+===========
+
+Release Date: October 23, 2008
+Hg Tag: 1.7.0
+
+- Libraries
+
+ - Added a new :doc:`Form Validation
+ Class <libraries/form_validation>`. It simplifies setting
+ rules and field names, supports arrays as field names, allows
+ groups of validation rules to be saved in a config file, and adds
+ some helper functions for use in view files. **Please note that
+ the old Validation class is now deprecated**. We will leave it in
+ the library folder for some time so that existing applications
+ that use it will not break, but you are encouraged to migrate to
+ the new version.
+ - Updated the :doc:`Sessions class <libraries/sessions>` so that
+ any custom data being saved gets stored to a database rather than
+ the session cookie (assuming you are using a database to store
+ session data), permitting much more data to be saved.
+ - Added the ability to store libraries in subdirectories within
+ either the main "libraries" or the local application "libraries"
+ folder. Please see the :doc:`Loader class <libraries/loader>` for
+ more info.
+ - Added the ability to assign library objects to your own variable
+ names when you use $this->load->library(). Please see the :doc:`Loader
+ class <libraries/loader>` for more info.
+ - Added controller class/method info to :doc:`Profiler
+ class <general/profiling>` and support for multiple database
+ connections.
+ - Improved the "auto typography" feature and moved it out of the
+ helper into its own :doc:`Typography
+ Class <libraries/typography>`.
+ - Improved performance and accuracy of xss_clean(), including
+ reduction of false positives on image/file tests.
+ - Improved :doc:`Parser class <./libraries/parser>` to allow
+ multiple calls to the parse() function. The output of each is
+ appended in the output.
+ - Added max_filename option to set a file name length limit in the
+ :doc:`File Upload Class <libraries/file_uploading>`.
+ - Added set_status_header() function to :doc:`Output
+ class <libraries/output>`.
+ - Modified :doc:`Pagination <libraries/pagination>` class to only
+ output the "First" link when the link for page one would not be
+ shown.
+ - Added support for mb_strlen in the :doc:`Form
+ Validation <libraries/form_validation>` class so that
+ multi-byte languages will calculate string lengths properly.
+
+- Database
+
+ - Improved Active Record class to allow full path column and table
+ names: hostname.database.table.column. Also improved the alias
+ handling.
+ - Improved how table and column names are escaped and prefixed. It
+ now honors full path names when adding prefixes and escaping.
+ - Added Active Record caching feature to "update" and "delete"
+ functions.
+ - Added removal of non-printing control characters in escape_str()
+ of DB drivers that do not have native PHP escaping mechanisms
+ (mssql, oci8, odbc), to avoid potential SQL errors, and possible
+ sources of SQL injection.
+ - Added port support to MySQL, MySQLi, and MS SQL database drivers.
+ - Added driver name variable in each DB driver, based on bug report
+ #4436.
+
+- Helpers
+
+ - Added several new "setting" functions to the :doc:`Form
+ helper <helpers/form_helper>` that allow POST data to be
+ retrieved and set into forms. These are intended to be used on
+ their own, or with the new :doc:`Form Validation
+ Class <libraries/form_validation>`.
+ - Added current_url() and uri_segments() to :doc:`URL
+ helper <helpers/url_helper>`.
+ - Altered auto_link() in the :doc:`URL
+ helper <helpers/url_helper>` so that email addresses with
+ "+" included will be linked.
+ - Added meta() function to :doc:`HTML
+ helper <helpers/html_helper>`.
+ - Improved accuracy of calculations in :doc:`Number
+ helper <helpers/number_helper>`.
+ - Removed added newlines ("\\n") from most form and html helper
+ functions.
+ - Tightened up validation in the :doc:`Date
+ helper <helpers/date_helper>` function human_to_unix(),
+ and eliminated the POSIX regex.
+ - Updated :doc:`Date helper <helpers/date_helper>` to match the
+ world's current time zones and offsets.
+ - Modified url_title() in the :doc:`URL
+ helper <helpers/url_helper>` to remove characters and digits
+ that are part of character entities, to allow dashes, underscores,
+ and periods regardless of the $separator, and to allow uppercase
+ characters.
+ - Added support for arbitrary attributes in anchor_popup() of the
+ :doc:`URL helper <helpers/url_helper>`.
+
+- Other Changes
+
+ - Added :doc:`PHP Style Guide <./general/styleguide>` to docs.
+ - Added sanitization in xss_clean() for a deprecated HTML tag that
+ could be abused in user input in Internet Explorer.
+ - Added a few openxml document mime types, and an additional mobile
+ agent to mimes.php and user_agents.php respectively.
+ - Added a file lock check during caching, before trying to write to
+ the file.
+ - Modified Cookie key cleaning to unset a few troublesome key names
+ that can be present in certain environments, preventing CI from
+ halting execution.
+ - Changed the output of the profiler to use style attribute rather
+ than clear, and added the id "codeigniter_profiler" to the
+ container div.
+
+Bug fixes for 1.7.0
+-------------------
+
+- Fixed bug in xss_clean() that could remove some desirable tag
+ attributes.
+- Fixed assorted user guide typos or examples (#4807, #4812, #4840,
+ #4862, #4864, #4899, #4930, #5006, #5071, #5158, #5229, #5254,
+ #5351).
+- Fixed an edit from 1.6.3 that made the $robots array in
+ user_agents.php go poof.
+- Fixed a bug in the :doc:`Email library <libraries/email>` with
+ quoted-printable encoding improperly encoding space and tab
+ characters.
+- Modified XSS sanitization to no longer add semicolons after &[single
+ letter], such as in M&M's, B&B, etc.
+- Modified XSS sanitization to no longer strip XHTML image tags of
+ closing slashes.
+- Fixed a bug in the Session class when database sessions are used
+ where upon session update all userdata would be errantly written to
+ the session cookie.
+- Fixed a bug (#4536) in backups with the MySQL driver where some
+ legacy code was causing certain characters to be double escaped.
+- Fixed a routing bug (#4661) that occurred when the default route
+ pointed to a subfolder.
+- Fixed the spelling of "Dhaka" in the timezone_menu() function of the
+ :doc:`Date helper. <helpers/date_helper>`
+- Fixed the spelling of "raspberry" in config/smileys.php.
+- Fixed incorrect parenthesis in form_open() function (#5135).
+- Fixed a bug that was ignoring case when comparing controller methods
+ (#4560).
+- Fixed a bug (#4615) that was not setting SMTP authorization settings
+ when using the initialize function.
+- Fixed a bug in highlight_code() in the :doc:`Text
+ helper <helpers/text_helper>` that would leave a stray </span>
+ in certain cases.
+- Fixed Oracle bug (#3306) that was preventing multiple queries in one
+ action.
+- Fixed ODBC bug that was ignoring connection params due to its use of
+ a constructor.
+- Fixed a DB driver bug with num_rows() that would cause an error with
+ the Oracle driver.
+- Fixed MS SQL bug (#4915). Added brackets around database name in MS
+ SQL driver when selecting the database, in the event that reserved
+ characters are used in the name.
+- Fixed a DB caching bug (4718) in which the path was incorrect when no
+ URI segments were present.
+- Fixed Image_lib class bug #4562. A path was not defined for NetPBM.
+- Fixed Image_lib class bug #4532. When cropping an image with
+ identical height/width settings on output, a copy is made.
+- Fixed DB_driver bug (4900), in which a database error was not being
+ logged correctly.
+- Fixed DB backup bug in which field names were not being escaped.
+- Fixed a DB Active Record caching bug in which multiple calls to
+ cached data were not being honored.
+- Fixed a bug in the Session class that was disallowing slashes in the
+ serialized array.
+- Fixed a Form Validation bug in which the "isset" error message was
+ being trigged by the "required" rule.
+- Fixed a spelling error in a Loader error message.
+- Fixed a bug (5050) with IP validation with empty segments.
+- Fixed a bug in which the parser was being greedy if multiple
+ identical sets of tags were encountered.
+
+Version 1.6.3
+=============
+
+Release Date: June 26, 2008
+Hg Tag: v1.6.3
+
+Version 1.6.3 is a security and maintenance release and is recommended
+for all users.
+
+- Database
+
+ - Modified MySQL/MySQLi Forge class to give explicit names to keys
+ - Added ability to set multiple column non-primary keys to the
+ :doc:`Forge class <database/forge>`
+ - Added ability to set additional database config values in :doc:`DSN
+ connections <database/connecting>` via the query string.
+
+- Libraries
+
+ - Set the mime type check in the :doc:`Upload
+ class <libraries/file_uploading>` to reference the global
+ mimes variable.
+ - Added support for query strings to the :doc:`Pagination
+ class <libraries/pagination>`, automatically detected or
+ explicitly declared.
+ - Added get_post() to the :doc:`Input class <libraries/input>`.
+ - Documented get() in the :doc:`Input class <libraries/input>`.
+ - Added the ability to automatically output language items as form
+ labels in the :doc:`Language class <libraries/language>`.
+
+- Helpers
+
+ - Added a :doc:`Language helper <helpers/language_helper>`.
+ - Added a :doc:`Number helper <helpers/number_helper>`.
+ - :doc:`Form helper <helpers/form_helper>` refactored to allow
+ form_open() and form_fieldset() to accept arrays or strings as
+ arguments.
+
+- Other changes
+
+ - Improved security in xss_clean().
+ - Removed an unused Router reference in _display_cache().
+ - Added ability to :doc:`use xss_clean() to test
+ images <libraries/input>` for XSS, useful for upload
+ security.
+ - Considerably expanded list of mobile user-agents in
+ config/user_agents.php.
+ - Charset information in the userguide has been moved above title
+ for internationalization purposes (#4614).
+ - Added "Using Associative Arrays In a Request Parameter" example to
+ the :doc:`XMLRPC userguide page <libraries/xmlrpc>`.
+ - Removed maxlength and size as automatically added attributes of
+ form_input() in the :doc:`form helper <helpers/form_helper>`.
+ - Documented the language file use of byte_format() in the :doc:`number
+ helper <helpers/number_helper>`.
+
+Bug fixes for 1.6.3
+-------------------
+
+- Added a language key for valid_emails in validation_lang.php.
+- Amended fixes for bug (#3419) with parsing DSN database connections.
+- Moved the _has_operators() function (#4535) into DB_driver from
+ DB_active_rec.
+- Fixed a syntax error in upload_lang.php.
+- Fixed a bug (#4542) with a regular expression in the Image library.
+- Fixed a bug (#4561) where orhaving() wasn't properly passing values.
+- Removed some unused variables from the code (#4563).
+- Fixed a bug where having() was not adding an = into the statement
+ (#4568).
+- Fixed assorted user guide typos or examples (#4574, #4706).
+- Added quoted-printable headers to Email class when the multi-part
+ override is used.
+- Fixed a double opening <p> tag in the index pages of each system
+ directory.
+
+Version 1.6.2
+=============
+
+Release Date: May 13, 2008
+Hg Tag: 1.6.2
+
+- Active Record
+
+ - Added the ability to prevent escaping in having() clauses.
+ - Added rename_table() into :doc:`DBForge <./database/forge>`.
+ - Fixed a bug that wasn't allowing escaping to be turned off if the
+ value of a query was NULL.
+ - DB Forge is now assigned to any models that exist after loading
+ (#3457).
+
+- Database
+
+ - Added :doc:`Strict Mode <./database/transactions>` to database
+ transactions.
+ - Escape behaviour in where() clauses has changed; values in those
+ with the "FALSE" argument are no longer escaped (ie: quoted).
+
+- Config
+
+ - Added 'application/vnd.ms-powerpoint' to list of mime types.
+ - Added 'audio/mpg' to list of mime types.
+ - Added new user-modifiable file constants.php containing file mode
+ and fopen constants.
+ - Added the ability to set CRLF settings via config in the
+ :doc:`Email <libraries/email>` class.
+
+- Libraries
+
+ - Added increased security for filename handling in the Upload
+ library.
+ - Added increased security for sessions for client-side data
+ tampering.
+ - The MySQLi forge class is now in sync with MySQL forge.
+ - Added the ability to set CRLF settings via config in the
+ :doc:`Email <libraries/email>` class.
+ - :doc:`Unit Testing <libraries/unit_testing>` results are now
+ colour coded, and a change was made to the default template of
+ results.
+ - Added a valid_emails rule to the Validation class.
+ - The :doc:`Zip class <libraries/zip>` now exits within download().
+ - The :doc:`Zip class <libraries/zip>` has undergone a substantial
+ re-write for speed and clarity (thanks stanleyxu for the hard work
+ and code contribution in bug report #3425!)
+
+- Helpers
+
+ - Added a Compatibility
+ Helper for using some common
+ PHP 5 functions safely in applications that might run on PHP 4
+ servers (thanks Seppo for the hard work and code contribution!)
+ - Added form_button() in the :doc:`Form
+ helper <helpers/form_helper>`.
+ - Changed the radio() and checkbox() functions to default to not
+ checked by default.
+ - Added the ability to include an optional HTTP Response Code in the
+ redirect() function of the :doc:`URL
+ Helper <helpers/url_helper>`.
+ - Modified img() in the :doc:`HTML Helper <helpers/html_helper>` to
+ remove an unneeded space (#4208).
+ - Modified anchor() in the :doc:`URL helper <helpers/url_helper>`
+ to no longer add a default title= attribute (#4209).
+ - The :doc:`Download helper <helpers/download_helper>` now exits
+ within force_download().
+ - Added get_dir_file_info(), get_file_info(), and
+ get_mime_by_extension() to the :doc:`File
+ Helper <helpers/file_helper>`.
+ - Added symbolic_permissions() and octal_permissions() to the
+ :doc:`File helper <helpers/file_helper>`.
+
+- Plugins
+
+ - Modified captcha generation to first look for the function
+ imagecreatetruecolor, and fallback to imagecreate if it isn't
+ available (#4226).
+
+- Other Changes
+
+ - Added ability for :doc:`xss_clean() <libraries/input>` to accept
+ arrays.
+ - Removed closing PHP tags from all PHP files to avoid accidental
+ output and potential 'cannot modify headers' errors.
+ - Removed "scripts" from the auto-load search path. Scripts were
+ deprecated in Version 1.4.1 (September 21, 2006). If you still
+ need to use them for legacy reasons, they must now be manually
+ loaded in each Controller.
+ - Added a :doc:`Reserved Names <general/reserved_names>` page to
+ the userguide, and migrated reserved controller names into it.
+ - Added a :doc:`Common Functions <general/common_functions>` page
+ to the userguide for globally available functions.
+ - Improved security and performance of xss_clean().
+
+Bugfixes for 1.6.2
+------------------
+
+- Fixed a bug where SET queries were not being handled as "write"
+ queries.
+- Fixed a bug (#3191) with ORIG_PATH_INFO URI parsing.
+- Fixed a bug in DB Forge, when inserting an id field (#3456).
+- Fixed a bug in the table library that could cause identically
+ constructed rows to be dropped (#3459).
+- Fixed DB Driver and MySQLi result driver checking for resources
+ instead of objects (#3461).
+- Fixed an AR_caching error where it wasn't tracking table aliases
+ (#3463).
+- Fixed a bug in AR compiling, where select statements with arguments
+ got incorrectly escaped (#3478).
+- Fixed an incorrect documentation of $this->load->language (#3520).
+- Fixed bugs (#3523, #4350) in get_filenames() with recursion and
+ problems with Windows when $include_path is used.
+- Fixed a bug (#4153) in the XML-RPC class preventing dateTime.iso8601
+ from being used.
+- Fixed an AR bug with or_where_not_in() (#4171).
+- Fixed a bug with :doc:`xss_clean() <libraries/input>` that would
+ add semicolons to GET URI variable strings.
+- Fixed a bug (#4206) in the Directory Helper where the directory
+ resource was not being closed, and minor improvements.
+- Fixed a bug in the FTP library where delete_dir() was not working
+ recursively (#4215).
+- Fixed a Validation bug when set_rules() is used with a non-array
+ field name and rule (#4220).
+- Fixed a bug (#4223) where DB caching would not work for returned DB
+ objects or multiple DB connections.
+- Fixed a bug in the Upload library that might output the same error
+ twice (#4390).
+- Fixed an AR bug when joining with a table alias and table prefix
+ (#4400).
+- Fixed a bug in the DB class testing the $params argument.
+- Fixed a bug in the Table library where the integer 0 in cell data
+ would be displayed as a blank cell.
+- Fixed a bug in link_tag() of the :doc:`URL
+ helper <helpers/url_helper>` where a key was passed instead of
+ a value.
+- Fixed a bug in DB_result::row() that prevented it from returning
+ individual fields with MySQL NULL values.
+- Fixed a bug where SMTP emails were not having dot transformation
+ performed on lines that begin with a dot.
+- Fixed a bug in display_error() in the DB driver that was
+ instantiating new Language and Exception objects, and not using the
+ error heading.
+- Fixed a bug (#4413) where a URI containing slashes only e.g.
+ 'http://example.com/index.php?//' would result in PHP errors
+- Fixed an array to string conversion error in the Validation library
+ (#4425)
+- Fixed bug (#4451, #4299, #4339) where failed transactions will not
+ rollback when debug mode is enabled.
+- Fixed a bug (#4506) with overlay_watermark() in the Image library
+ preventing support for PNG-24s with alpha transparency
+- Fixed assorted user guide typos (#3453, #4364, #4379, #4399, #4408,
+ #4412, #4448, #4488).
+
+Version 1.6.1
+=============
+
+Release Date: February 12, 2008
+Hg Tag: 1.6.1
+
+- Active Record
+
+ - Added :ref:`Active Record
+ Caching <ar-caching>`.
+ - Made Active Record fully database-prefix aware.
+
+- Database drivers
+
+ - Added support for setting client character set and collation for
+ MySQLi.
+
+- Core Changes
+
+ - Modified xss_clean() to be more intelligent with its handling of
+ URL encoded strings.
+ - Added $_SERVER, $_FILES, $_ENV, and $_SESSION to sanitization
+ of globals.
+ - Added a `Path Helper <./helpers/path_helper>`.
+ - Simplified _reindex_segments() in the URI class.
+ - Escaped the '-' in the default 'permitted_uri_chars' config
+ item, to prevent errors if developers just try to add additional
+ characters to the end of the default expression.
+ - Modified method calling to controllers to show a 404 when a
+ private or protected method is accessed via a URL.
+ - Modified framework initiated 404s to log the controller and method
+ for invalid requests.
+
+- Helpers
+
+ - Modified get_filenames() in the File Helper to return FALSE if
+ the $source_dir is not readable.
+
+Bugfixes for 1.6.1
+------------------
+
+- Deprecated is_numeric as a validation rule. Use of numeric and
+ integer are preferred.
+- Fixed bug (#3379) in DBForge with SQLite for table creation.
+- Made Active Record fully database prefix aware (#3384).
+- Fixed a bug where DBForge was outputting invalid SQL in Postgres by
+ adding brackets around the tables in FROM.
+- Changed the behaviour of Active Record's update() to make the WHERE
+ clause optional (#3395).
+- Fixed a bug (#3396) where certain POST variables would cause a PHP
+ warning.
+- Fixed a bug in query binding (#3402).
+- Changed order of SQL keywords in the Profiler $highlight array so OR
+ would not be highlighted before ORDER BY.
+- Fixed a bug (#3404) where the MySQLi driver was testing if
+ $this->conn_id was a resource instead of an object.
+- Fixed a bug (#3419) connecting to a database via a DSN string.
+- Fixed a bug (#3445) where the routed segment array was not re-indexed
+ to begin with 1 when the default controller is used.
+- Fixed assorted user guide typos.
+
+Version 1.6.0
+=============
+
+Release Date: January 30, 2008
+
+- DBForge
+
+ - Added :doc:`DBForge <./database/forge>` to the database tools.
+ - Moved create_database() and drop_database() into
+ :doc:`DBForge <./database/forge>`.
+ - Added add_field(), add_key(), create_table(), drop_table(),
+ add_column(), drop_column(), modify_column() into
+ :doc:`DBForge <./database/forge>`.
+
+- Active Record
+
+ - Added protect_identifiers() in :doc:`Active
+ Record <./database/active_record>`.
+ - All AR queries are backticked if appropriate to the database.
+ - Added where_in(), or_where_in(), where_not_in(),
+ or_where_not_in(), not_like() and or_not_like() to :doc:`Active
+ Record <./database/active_record>`.
+ - Added support for limit() into update() and delete() statements in
+ :doc:`Active Record <./database/active_record>`.
+ - Added empty_table() and truncate_table() to :doc:`Active
+ Record <./database/active_record>`.
+ - Added the ability to pass an array of tables to the delete()
+ statement in :doc:`Active Record <./database/active_record>`.
+ - Added count_all_results() function to :doc:`Active
+ Record <./database/active_record>`.
+ - Added select_max(), select_min(), select_avg() and
+ select_sum() to :doc:`Active Record <./database/active_record>`.
+ - Added the ability to use aliases with joins in :doc:`Active
+ Record <./database/active_record>`.
+ - Added a third parameter to Active Record's like() clause to
+ control where the wildcard goes.
+ - Added a third parameter to set() in :doc:`Active
+ Record <./database/active_record>` that withholds escaping
+ data.
+ - Changed the behaviour of variables submitted to the where() clause
+ with no values to auto set "IS NULL"
+
+- Other Database Related
+
+ - MySQL driver now requires MySQL 4.1+
+ - Added $this->DB->save_queries variable to DB driver, enabling
+ queries to get saved or not. Previously they were always saved.
+ - Added $this->db->dbprefix() to manually add database prefixes.
+ - Added 'random' as an order_by() option , and removed "rand()" as
+ a listed option as it was MySQL only.
+ - Added a check for NULL fields in the MySQL database backup
+ utility.
+ - Added "constrain_by_prefix" parameter to db->list_table()
+ function. If set to TRUE it will limit the result to only table
+ names with the current prefix.
+ - Deprecated from Active Record; getwhere() for get_where();
+ groupby() for group_by(); havingor() for having_or(); orderby()
+ for order_by; orwhere() for or_where(); and orlike() for
+ or_like().
+ - Modified csv_from_result() to output CSV data more in the spirit
+ of basic rules of RFC 4180.
+ - Added 'char_set' and 'dbcollat' database configuration settings,
+ to explicitly set the client communication properly.
+ - Removed 'active_r' configuration setting and replaced with a
+ global $active_record setting, which is more in harmony with the
+ global nature of the behavior (#1834).
+
+- Core changes
+
+ - Added ability to load multiple views, whose content will be
+ appended to the output in the order loaded.
+ - Added the ability to :doc:`auto-load <./general/autoloader>`
+ :doc:`Models <./general/models>`.
+ - Reorganized the URI and Routes classes for better clarity.
+ - Added Compat.php to allow function overrides for older versions of
+ PHP or PHP environments missing certain extensions / libraries
+ - Added memory usage, GET, URI string data, and individual query
+ execution time to Profiler output.
+ - Deprecated Scaffolding.
+ - Added is_really_writable() to Common.php to provide a
+ cross-platform reliable method of testing file/folder writability.
+
+- Libraries
+
+ - Changed the load protocol of Models to allow for extension.
+ - Strengthened the Encryption library to help protect against man in
+ the middle attacks when MCRYPT_MODE_CBC mode is used.
+ - Added Flashdata variables, session_id regeneration and
+ configurable session update times to the :doc:`Session
+ class. <./libraries/sessions>`
+ - Removed 'last_visit' from the Session class.
+ - Added a language entry for valid_ip validation error.
+ - Modified prep_for_form() in the Validation class to accept
+ arrays, adding support for POST array validation (via callbacks
+ only)
+ - Added an "integer" rule into the Validation library.
+ - Added valid_base64() to the Validation library.
+ - Documented clear() in the :doc:`Image
+ Processing <../libraries/image_lib>` library.
+ - Changed the behaviour of custom callbacks so that they no longer
+ trigger the "required" rule.
+ - Modified Upload class $_FILES error messages to be more precise.
+ - Moved the safe mode and auth checks for the Email library into the
+ constructor.
+ - Modified variable names in _ci_load() method of Loader class to
+ avoid conflicts with view variables.
+ - Added a few additional mime type variations for CSV.
+ - Enabled the 'system' methods for the XML-RPC Server library,
+ except for 'system.multicall' which is still disabled.
+
+- Helpers & Plugins
+
+ - Added link_tag() to the :doc:`HTML
+ helper. <./helpers/html_helper>`
+ - Added img() to the :doc:`HTML helper. <./helpers/html_helper>`
+ - Added ability to :doc:`"extend" Helpers <./general/helpers>`.
+ - Added an :doc:`email helper <./helpers/email_helper>` into core
+ helpers.
+ - Added strip_quotes() function to :doc:`string
+ helper <./helpers/string_helper>`.
+ - Added reduce_multiples() function to :doc:`string
+ helper <./helpers/string_helper>`.
+ - Added quotes_to_entities() function to :doc:`string
+ helper <./helpers/string_helper>`.
+ - Added form_fieldset(), form_fieldset_close(), form_label(),
+ and form_reset() function to :doc:`form
+ helper <./helpers/form_helper>`.
+ - Added support for external urls in form_open().
+ - Removed support for db_backup in MySQLi due to incompatible
+ functions.
+ - Javascript Calendar plugin now uses the months and days from the
+ calendar language file, instead of hard-coded values,
+ internationalizing it.
+
+- Documentation Changes
+
+ - Added Writing Documentation section
+ for the community to use in writing their own documentation.
+ - Added titles to all user manual pages.
+ - Added attributes into <html> of userguide for valid html.
+ - Added `Zip Encoding
+ Class <http://codeigniter.com/user_guide/libraries/zip>`_ to
+ the table of contents of the userguide.
+ - Moved part of the userguide menu javascript to an external file.
+ - Documented distinct() in :doc:`Active
+ Record <./database/active_record>`.
+ - Documented the timezones() function in the :doc:`Date
+ Helper <./helpers/date_helper>`.
+ - Documented unset_userdata in the :doc:`Session
+ class <./libraries/sessions>`.
+ - Documented 2 config options to the :doc:`Database
+ configuration <./database/configuration>` page.
+
+Bug fixes for Version 1.6.0
+---------------------------
+
+- Fixed a bug (#1813) preventing using $CI->db in the same application
+ with returned database objects.
+- Fixed a bug (#1842) where the $this->uri->rsegments array would not
+ include the 'index' method if routed to the controller without an
+ implicit method.
+- Fixed a bug (#1872) where word_limiter() was not retaining
+ whitespace.
+- Fixed a bug (#1890) in csv_from_result() where content that
+ included the delimiter would break the file.
+- Fixed a bug (#2542)in the clean_email() method of the Email class to
+ allow for non-numeric / non-sequential array keys.
+- Fixed a bug (#2545) in _html_entity_decode_callback() when
+ 'global_xss_filtering' is enabled.
+- Fixed a bug (#2668) in the :doc:`parser class <./libraries/parser>`
+ where numeric data was ignored.
+- Fixed a bug (#2679) where the "previous" pagination link would get
+ drawn on the first page.
+- Fixed a bug (#2702) in _object_to_array that broke some types of
+ inserts and updates.
+- Fixed a bug (#2732) in the SQLite driver for PHP 4.
+- Fixed a bug (#2754) in Pagination to scan for non-positive
+ num_links.
+- Fixed a bug (#2762) in the :doc:`Session
+ library <./libraries/sessions>` where user agent matching would
+ fail on user agents ending with a space.
+- Fixed a bug (#2784) $field_names[] vs $Ffield_names[] in postgres
+ and sqlite drivers.
+- Fixed a bug (#2810) in the typography helper causing extraneous
+ paragraph tags when string contains tags.
+- Fixed a bug (#2849) where arguments passed to a subfolder controller
+ method would be incorrectly shifted, dropping the 3rd segment value.
+- Fixed a bug (#2858) which referenced a wrong variable in the Image
+ class.
+- Fixed a bug (#2875)when loading plugin files as _plugin. and not
+ _pi.
+- Fixed a bug (#2912) in get_filenames() in the :doc:`File
+ Helper <helpers/file_helper>` where the array wasn't cleared
+ after each call.
+- Fixed a bug (#2974) in highlight_phrase() that caused an error with
+ slashes.
+- Fixed a bug (#3003) in the Encryption Library to support modes other
+ than MCRYPT_MODE_ECB
+- Fixed a bug (#3015) in the :doc:`User Agent
+ library <./libraries/user_agent>` where more then 2 languages
+ where not reported with languages().
+- Fixed a bug (#3017) in the :doc:`Email <./libraries/email>` library
+ where some timezones were calculated incorrectly.
+- Fixed a bug (#3024) in which master_dim wasn't getting reset by
+ clear() in the Image library.
+- Fixed a bug (#3156) in Text Helper highlight_code() causing PHP tags
+ to be handled incorrectly.
+- Fixed a bug (#3166) that prevented num_rows from working in Oracle.
+- Fixed a bug (#3175) preventing certain libraries from working
+ properly when autoloaded in PHP 4.
+- Fixed a bug (#3267) in the Typography Helper where unordered list was
+ listed "un.
+- Fixed a bug (#3268) where the Router could leave '/' as the path.
+- Fixed a bug (#3279) where the Email class was sending the wrong
+ Content-Transfer-Encoding for some character sets.
+- Fixed a bug (#3284) where the rsegment array would not be set
+ properly if the requested URI contained more segments than the routed
+ URI.
+- Removed extraneous load of $CFG in _display_cache() of the Output
+ class (#3285).
+- Removed an extraneous call to loading models (#3286).
+- Fixed a bug (#3310) with sanitization of globals in the Input class
+ that could unset CI's global variables.
+- Fixed a bug (#3314) which would cause the top level path to be
+ deleted in delete_files() of the File helper.
+- Fixed a bug (#3328) where the smiley helper might return an undefined
+ variable.
+- Fixed a bug (#3330) in the FTP class where a comparison wasn't
+ getting made.
+- Removed an unused parameter from Profiler (#3332).
+- Fixed a bug in database driver where num_rows property wasn't
+ getting updated.
+- Fixed a bug in the :doc:`upload
+ library <./libraries/file_uploading>` when allowed_files
+ wasn't defined.
+- Fixed a bug in word_wrap() of the Text Helper that incorrectly
+ referenced an object.
+- Fixed a bug in Validation where valid_ip() wasn't called properly.
+- Fixed a bug in Validation where individual error messages for
+ checkboxes wasn't supported.
+- Fixed a bug in captcha calling an invalid PHP function.
+- Fixed a bug in the cookie helper "set_cookie" function. It was not
+ honoring the config settings.
+- Fixed a bug that was making validation callbacks required even when
+ not set as such.
+- Fixed a bug in the XML-RPC library so if a type is specified, a more
+ intelligent decision is made as to the default type.
+- Fixed an example of comma-separated emails in the email library
+ documentation.
+- Fixed an example in the Calendar library for Showing Next/Previous
+ Month Links.
+- Fixed a typo in the database language file.
+- Fixed a typo in the image language file "suppor" to "support".
+- Fixed an example for XML RPC.
+- Fixed an example of accept_charset() in the :doc:`User Agent
+ Library <./libraries/user_agent>`.
+- Fixed a typo in the docblock comments that had CodeIgniter spelled
+ CodeIgnitor.
+- Fixed a typo in the :doc:`String Helper <./helpers/string_helper>`
+ (uniquid changed to uniqid).
+- Fixed typos in the email Language class
+ (email_attachment_unredable, email_filed_smtp_login), and FTP
+ Class (ftp_unable_to_remame).
+- Added a stripslashes() into the Upload Library.
+- Fixed a series of grammatical and spelling errors in the language
+ files.
+- Fixed assorted user guide typos.
+
+Version 1.5.4
+=============
+
+Release Date: July 12, 2007
+
+- Added :doc:`custom Language files <./libraries/language>` to the
+ :doc:`autoload <./general/autoloader>` options.
+- Added stripslashes() to the _clean_input_data() function in the
+ :doc:`Input class <./libraries/input>` when magic quotes is on so
+ that data will always be un-slashed within the framework.
+- Added array to string into the :doc:`profiler <general/profiling>`.
+- Added some additional mime types in application/config/mimes.php.
+- Added filename_security() method to :doc:`Input
+ library <./libraries/input>`.
+- Added some additional arguments to the :doc:`Inflection
+ helper <./helpers/inflector_helper>` singular() to compensate
+ for words ending in "s". Also added a force parameter to pluralize().
+- Added $config['charset'] to the config file. Default value is
+ 'UTF-8', used in some string handling functions.
+- Fixed MSSQL insert_id().
+- Fixed a logic error in the DB trans_status() function. It was
+ incorrectly returning TRUE on failure and FALSE on success.
+- Fixed a bug that was allowing multiple load attempts on extended
+ classes.
+- Fixed a bug in the bootstrap file that was incorrectly attempting to
+ discern the full server path even when it was explicity set by the
+ user.
+- Fixed a bug in the escape_str() function in the MySQL driver.
+- Fixed a typo in the :doc:`Calendar library <./libraries/calendar>`
+- Fixed a typo in rpcs.php library
+- Fixed a bug in the :doc:`Zip library <./libraries/zip>`, providing
+ PC Zip file compatibility with Mac OS X
+- Fixed a bug in router that was ignoring the scaffolding route for
+ optimization
+- Fixed an IP validation bug.
+- Fixed a bug in display of POST keys in the
+ :doc:`Profiler <./general/profiling>` output
+- Fixed a bug in display of queries with characters that would be
+ interpreted as HTML in the :doc:`Profiler <./general/profiling>`
+ output
+- Fixed a bug in display of Email class print debugger with characters
+ that would be interpreted as HTML in the debugging output
+- Fixed a bug in the Content-Transfer-Encoding of HTML emails with the
+ quoted-printable MIME type
+- Fixed a bug where one could unset certain PHP superglobals by setting
+ them via GET or POST data
+- Fixed an undefined function error in the insert_id() function of the
+ PostgreSQL driver
+- Fixed various doc typos.
+- Documented two functions from the :doc:`String
+ helper <./helpers/string_helper>` that were missing from the
+ user guide: trim_slashes() and reduce_double_slashes().
+- Docs now validate to XHTML 1 transitional
+- Updated the XSS Filtering to take into account the IE expression()
+ ability and improved certain deletions to prevent possible exploits
+- Modified the Router so that when Query Strings are Enabled, the
+ controller trigger and function trigger values are sanitized for
+ filename include security.
+- Modified the is_image() method in the Upload library to take into
+ account Windows IE 6/7 eccentricities when dealing with MIMEs
+- Modified XSS Cleaning routine to be more performance friendly and
+ compatible with PHP 5.2's new PCRE backtrack and recursion limits.
+- Modified the :doc:`URL Helper <./helpers/url_helper>` to type cast
+ the $title as a string in case a numeric value is supplied
+- Modified Form Helper form_dropdown() to type cast the keys and
+ values of the options array as strings, allowing numeric values to be
+ properly set as 'selected'
+- Deprecated the use if is_numeric() in various places since it allows
+ periods. Due to compatibility problems with ctype_digit(), making it
+ unreliable in some installations, the following regular expression
+ was used instead: preg_match("/[^0-9]/", $n)
+- Deprecated: APPVER has been deprecated and replaced with CI_VERSION
+ for clarity.
+
+Version 1.5.3
+=============
+
+Release Date: April 15, 2007
+
+- Added array to string into the profiler
+- Code Igniter references updated to CodeIgniter
+- pMachine references updated to EllisLab
+- Fixed a bug in the repeater function of :doc:`string
+ helper <./helpers/string_helper>`.
+- Fixed a bug in ODBC driver
+- Fixed a bug in result_array() that was returning an empty array when
+ no result is produced.
+- Fixed a bug in the redirect function of the :doc:`url
+ helper <./helpers/url_helper>`.
+- Fixed an undefined variable in Loader
+- Fixed a version bug in the Postgres driver
+- Fixed a bug in the textarea function of the form helper for use with
+ strings
+- Fixed doc typos.
+
+Version 1.5.2
+=============
+
+Release Date: February 13, 2007
+
+- Added subversion information
+ to the `downloads <installation/downloads>` page.
+- Added support for captions in the :doc:`Table
+ Library <./libraries/table>`
+- Fixed a bug in the
+ :doc:`download_helper <helpers/download_helper>` that was causing
+ Internet Explorer to load rather than download
+- Fixed a bug in the Active Record Join function that was not taking
+ table prefixes into consideration.
+- Removed unescaped variables in error messages of Input and Router
+ classes
+- Fixed a bug in the Loader that was causing errors on Libraries loaded
+ twice. A debug message is now silently made in the log.
+- Fixed a bug in the :doc:`form helper <helpers/form_helper>` that
+ gave textarea a value attribute
+- Fixed a bug in the :doc:`Image Library <libraries/image_lib>` that
+ was ignoring resizing the same size image
+- Fixed some doc typos.
+
+Version 1.5.1
+=============
+
+Release Date: November 23, 2006
+
+- Added support for submitting arrays of libraries in the
+ $this->load->library function.
+- Added support for naming custom library files in lower or uppercase.
+- Fixed a bug related to output buffering.
+- Fixed a bug in the active record class that was not resetting query
+ data after a completed query.
+- Fixed a bug that was suppressing errors in controllers.
+- Fixed a problem that can cause a loop to occur when the config file
+ is missing.
+- Fixed a bug that occurred when multiple models were loaded with the
+ third parameter set to TRUE.
+- Fixed an oversight that was not unsetting globals properly in the
+ input sanitize function.
+- Fixed some bugs in the Oracle DB driver.
+- Fixed an incorrectly named variable in the MySQLi result driver.
+- Fixed some doc typos.
+
+Version 1.5.0.1
+===============
+
+Release Date: October 31, 2006
+
+- Fixed a problem in which duplicate attempts to load helpers and
+ classes were not being stopped.
+- Fixed a bug in the word_wrap() helper function.
+- Fixed an invalid color Hex number in the Profiler class.
+- Fixed a corrupted image in the user guide.
+
+Version 1.5.0
+=============
+
+Release Date: October 30, 2006
+
+- Added `DB utility class <./database/utilities>`, permitting DB
+ backups, CVS or XML files from DB results, and various other
+ functions.
+- Added :doc:`Database Caching Class <./database/caching>`.
+- Added :doc:`transaction support <./database/transactions>` to the
+ database classes.
+- Added :doc:`Profiler Class <./general/profiling>` which generates a
+ report of Benchmark execution times, queries, and POST data at the
+ bottom of your pages.
+- Added :doc:`User Agent Library <./libraries/user_agent>` which
+ allows browsers, robots, and mobile devises to be identified.
+- Added :doc:`HTML Table Class <./libraries/table>` , enabling tables
+ to be generated from arrays or database results.
+- Added :doc:`Zip Encoding Library <./libraries/zip>`.
+- Added :doc:`FTP Library <./libraries/ftp>`.
+- Added the ability to :doc:`extend
+ libraries <./general/creating_libraries>` and :doc:`extend core
+ classes <./general/core_classes>`, in addition to being able to
+ replace them.
+- Added support for storing :doc:`models within
+ sub-folders <./general/models>`.
+- Added :doc:`Download Helper <./helpers/download_helper>`.
+- Added :doc:`simple_query() <./database/queries>` function to the
+ database classes
+- Added :doc:`standard_date() <./helpers/date_helper>` function to
+ the Date Helper.
+- Added :doc:`$query->free_result() <./database/results>` to database
+ class.
+- Added :doc:`$query->list_fields() <./database/fields>` function to
+ database class
+- Added :doc:`$this->db->platform() <./database/helpers>` function
+- Added new :doc:`File Helper <./helpers/file_helper>`:
+ get_filenames()
+- Added new helper: :doc:`Smiley Helper <./helpers/smiley_helper>`
+- Added support for <ul> and <ol> lists in the :doc:`HTML
+ Helper <./helpers/html_helper>`
+- Added the ability to rewrite :doc:`short
+ tags <./general/alternative_php>` on-the-fly, converting them
+ to standard PHP statements, for those servers that do not support
+ short tags. This allows the cleaner syntax to be used regardless of
+ whether it's supported by the server.
+- Added the ability to :doc:`rename or relocate the "application"
+ folder <./general/managing_apps>`.
+- Added more thorough initialization in the upload class so that all
+ class variables are reset.
+- Added "is_numeric" to validation, which uses the native PHP
+ is_numeric function.
+- Improved the URI handler to make it more reliable when the
+ $config['uri_protocol'] item is set to AUTO.
+- Moved most of the functions in the Controller class into the Loader
+ class, allowing fewer reserved function names for controllers when
+ running under PHP 5.
+- Updated the DB Result class to return an empty array when
+ $query->result() doesn't produce a result.
+- Updated the input->cookie() and input->post() functions in :doc:`Input
+ Class <./libraries/input>` to permit arrays contained cookies
+ that are arrays to be run through the XSS filter.
+- Documented three functions from the Validation
+ class that were missing from the user
+ guide: set_select(), set_radio(), and set_checkbox().
+- Fixed a bug in the Email class related to SMTP Helo data.
+- Fixed a bug in the word wrapping helper and function in the email
+ class.
+- Fixed a bug in the validation class.
+- Fixed a bug in the typography helper that was incorrectly wrapping
+ block level elements in paragraph tags.
+- Fixed a problem in the form_prep() function that was double encoding
+ entities.
+- Fixed a bug that affects some versions of PHP when output buffering
+ is nested.
+- Fixed a bug that caused CI to stop working when the PHP magic
+ __get() or __set() functions were used within models or
+ controllers.
+- Fixed a pagination bug that was permitting negative values in the
+ URL.
+- Fixed an oversight in which the Loader class was not allowed to be
+ extended.
+- Changed _get_config() to get_config() since the function is not a
+ private one.
+- **Deprecated "init" folder**. Initialization happens automatically
+ now. :doc:`Please see documentation <./general/creating_libraries>`.
+- **Deprecated** $this->db->field_names() USE
+ $this->db->list_fields()
+- **Deprecated** the $config['log_errors'] item from the config.php
+ file. Instead, $config['log_threshold'] can be set to "0" to turn it
+ off.
+
+Version 1.4.1
+=============
+
+Release Date: September 21, 2006
+
+- Added a new feature that passes URI segments directly to your
+ function calls as parameters. See the
+ :doc:`Controllers <general/controllers>` page for more info.
+- Added support for a function named _output(), which when used in
+ your controllers will received the final rendered output from the
+ output class. More info in the :doc:`Controllers <general/controllers>`
+ page.
+- Added several new functions in the :doc:`URI
+ Class <./libraries/uri>` to let you retrieve and manipulate URI
+ segments that have been re-routed using the :doc:`URI
+ Routing <general/routing>` feature. Previously, the URI class did not
+ permit you to access any re-routed URI segments, but now it does.
+- Added :doc:`$this->output->set_header() <./libraries/output>`
+ function, which allows you to set server headers.
+- Updated plugins, helpers, and language classes to allow your
+ application folder to contain its own plugins, helpers, and language
+ folders. Previously they were always treated as global for your
+ entire installation. If your application folder contains any of these
+ resources they will be used *instead* the global ones.
+- Added :doc:`Inflector helper <./helpers/inflector_helper>`.
+- Added element() function in the :doc:`array
+ helper <./helpers/array_helper>`.
+- Added RAND() to active record orderby() function.
+- Added delete_cookie() and get_cookie() to :doc:`Cookie
+ helper <./helpers/cookie_helper>`, even though the input class
+ has a cookie fetching function.
+- Added Oracle database driver (still undergoing testing so it might
+ have some bugs).
+- Added the ability to combine pseudo-variables and php variables in
+ the template parser class.
+- Added output compression option to the config file.
+- Removed the is_numeric test from the db->escape() function.
+- Fixed a MySQLi bug that was causing error messages not to contain
+ proper error data.
+- Fixed a bug in the email class which was causing it to ignore
+ explicitly set alternative headers.
+- Fixed a bug that was causing a PHP error when the Exceptions class
+ was called within the get_config() function since it was causing
+ problems.
+- Fixed an oversight in the cookie helper in which the config file
+ cookie settings were not being honored.
+- Fixed an oversight in the upload class. An item mentioned in the 1.4
+ changelog was missing.
+- Added some code to allow email attachments to be reset when sending
+ batches of email.
+- Deprecated the application/scripts folder. It will continue to work
+ for legacy users, but it is recommended that you create your own
+ :doc:`libraries <./general/libraries>` or
+ :doc:`models <./general/models>` instead. It was originally added
+ before CI had user libraries or models, but it's not needed anymore.
+- Deprecated the $autoload['core'] item from the autoload.php file.
+ Instead, please now use: $autoload['libraries']
+- Deprecated the following database functions:
+ $this->db->smart_escape_str() and $this->db->fields().
+
+Version 1.4.0
+=============
+
+Release Date: September 17, 2006
+
+- Added :doc:`Hooks <./general/hooks>` feature, enabling you to tap
+ into and modify the inner workings of the framework without hacking
+ the core files.
+- Added the ability to organize controller files :doc:`into
+ sub-folders <general/controllers>`. Kudos to Marco for
+ `suggesting <http://codeigniter.com/forums/viewthread/627/>`_ this
+ (and the next two) feature.
+- Added regular expressions support for `routing
+ rules <./general/routing>`.
+- Added the ability to :doc:`remap function
+ calls <./general/controllers>` within your controllers.
+- Added the ability to :doc:`replace core system
+ classes <./general/core_classes>` with your own classes.
+- Added support for % character in URL.
+- Added the ability to supply full URLs using the
+ :doc:`anchor() <./helpers/url_helper>` helper function.
+- Added mode parameter to :doc:`file_write() <./helpers/file_helper>`
+ helper.
+- Added support for changing the port number in the :doc:`Postgres
+ driver <./database/configuration>`.
+- Moved the list of "allowed URI characters" out of the Router class
+ and into the config file.
+- Moved the MIME type array out of the Upload class and into its own
+ file in the applications/config/ folder.
+- Updated the Upload class to allow the upload field name to be set
+ when calling :doc:`do_upload() <./libraries/file_uploading>`.
+- Updated the :doc:`Config Library <./libraries/config>` to be able to
+ load config files silently, and to be able to assign config files to
+ their own index (to avoid collisions if you use multiple config
+ files).
+- Updated the URI Protocol code to allow more options so that URLs will
+ work more reliably in different environments.
+- Updated the form_open() helper to allow the GET method to be used.
+- Updated the MySQLi execute() function with some code to help prevent
+ lost connection errors.
+- Updated the SQLite Driver to check for object support before
+ attempting to return results as objects. If unsupported it returns an
+ array.
+- Updated the Models loader function to allow multiple loads of the
+ same model.
+- Updated the MS SQL driver so that single quotes are escaped.
+- Updated the Postgres and ODBC drivers for better compatibility.
+- Removed a strtolower() call that was changing URL segments to lower
+ case.
+- Removed some references that were interfering with PHP 4.4.1
+ compatibility.
+- Removed backticks from Postgres class since these are not needed.
+- Renamed display() to _display() in the Output class to make it clear
+ that it's a private function.
+- Deprecated the hash() function due to a naming conflict with a native
+ PHP function with the same name. Please use dohash() instead.
+- Fixed an bug that was preventing the input class from unsetting GET
+ variables.
+- Fixed a router bug that was making it too greedy when matching end
+ segments.
+- Fixed a bug that was preventing multiple discrete database calls.
+- Fixed a bug in which loading a language file was producing a "file
+ contains no data" message.
+- Fixed a session bug caused by the XSS Filtering feature inadvertently
+ changing the case of certain words.
+- Fixed some missing prefixes when using the database prefix feature.
+- Fixed a typo in the Calendar class (cal_november).
+- Fixed a bug in the form_checkbox() helper.
+- Fixed a bug that was allowing the second segment of the URI to be
+ identical to the class name.
+- Fixed an evaluation bug in the database initialization function.
+- Fixed a minor bug in one of the error messages in the language class.
+- Fixed a bug in the date helper timespan function.
+- Fixed an undefined variable in the DB Driver class.
+- Fixed a bug in which dollar signs used as binding replacement values
+ in the DB class would be treated as RegEx back-references.
+- Fixed a bug in the set_hash() function which was preventing MD5 from
+ being used.
+- Fixed a couple bugs in the Unit Testing class.
+- Fixed an incorrectly named variable in the Validation class.
+- Fixed an incorrectly named variable in the URI class.
+- Fixed a bug in the config class that was preventing the base URL from
+ being called properly.
+- Fixed a bug in the validation class that was not permitting callbacks
+ if the form field was empty.
+- Fixed a problem that was preventing scaffolding from working properly
+ with MySQLi.
+- Fixed some MS SQL bugs.
+- Fixed some doc typos.
+
+Version 1.3.3
+=============
+
+Release Date: June 1, 2006
+
+- Models do **not** connect automatically to the database as of this
+ version. :doc:`More info here <./general/models>`.
+- Updated the Sessions class to utilize the active record class when
+ running session related queries. Previously the queries assumed MySQL
+ syntax.
+- Updated alternator() function to re-initialize when called with no
+ arguments, allowing multiple calls.
+- Fixed a bug in the active record "having" function.
+- Fixed a problem in the validation class which was making checkboxes
+ be ignored when required.
+- Fixed a bug in the word_limiter() helper function. It was cutting
+ off the fist word.
+- Fixed a bug in the xss_clean function due to a PHP bug that affects
+ some versions of html_entity_decode.
+- Fixed a validation bug that was preventing rules from being set twice
+ in one controller.
+- Fixed a calendar bug that was not letting it use dynamically loaded
+ languages.
+- Fixed a bug in the active record class when using WHERE clauses with
+ LIKE
+- Fixed a bug in the hash() security helper.
+- Fixed some typos.
+
+Version 1.3.2
+=============
+
+Release Date: April 17, 2006
+
+- Changed the behavior of the validation class such that if a
+ "required" rule is NOT explicitly stated for a field then all other
+ tests get ignored.
+- Fixed a bug in the Controller class that was causing it to look in
+ the local "init" folder instead of the main system one.
+- Fixed a bug in the init_pagination file. The $config item was not
+ being set correctly.
+- Fixed a bug in the auto typography helper that was causing
+ inconsistent behavior.
+- Fixed a couple bugs in the Model class.
+- Fixed some documentation typos and errata.
+
+Version 1.3.1
+=============
+
+Release Date: April 11, 2006
+
+- Added a :doc:`Unit Testing Library <./libraries/unit_testing>`.
+- Added the ability to pass objects to the **insert()** and
+ **update()** database functions. This feature enables you to (among
+ other things) use your :doc:`Model class <./general/models>`
+ variables to run queries with. See the Models page for details.
+- Added the ability to pass objects to the :doc:`view loading
+ function <./general/views>`: $this->load->view('my_view',
+ $object);
+- Added getwhere function to :doc:`Active Record
+ class <./database/active_record>`.
+- Added count_all function to :doc:`Active Record
+ class <./database/active_record>`.
+- Added language file for scaffolding and fixed a scaffolding bug that
+ occurs when there are no rows in the specified table.
+- Added :doc:`$this->db->last_query() <./database/queries>`, which
+ allows you to view your last query that was run.
+- Added a new mime type to the upload class for better compatibility.
+- Changed how cache files are read to prevent PHP errors if the cache
+ file contains an XML tag, which PHP wants to interpret as a short
+ tag.
+- Fixed a bug in a couple of the active record functions (where and
+ orderby).
+- Fixed a bug in the image library when realpath() returns false.
+- Fixed a bug in the Models that was preventing libraries from being
+ used within them.
+- Fixed a bug in the "exact_length" function of the validation class.
+- Fixed some typos in the user guide
+
+Version 1.3
+===========
+
+Release Date: April 3, 2006
+
+- Added support for :doc:`Models <general/models>`.
+- Redesigned the database libraries to support additional RDBMs
+ (Postgres, MySQLi, etc.).
+- Redesigned the :doc:`Active Record class <./database/active_record>`
+ to enable more varied types of queries with simpler syntax, and
+ advanced features like JOINs.
+- Added a feature to the database class that lets you run :doc:`custom
+ function calls <./database/call_function>`.
+- Added support for :doc:`private functions <general/controllers>` in your
+ controllers. Any controller function name that starts with an
+ underscore will not be served by a URI request.
+- Added the ability to pass your own initialization parameters to your
+ :doc:`custom core libraries <general/creating_libraries>` when using
+ $this->load->library()
+- Added support for running standard :doc:`query string URLs <general/urls>`.
+ These can be optionally enabled in your config file.
+- Added the ability to :doc:`specify a "suffix" <general/urls>`, which will be
+ appended to your URLs. For example, you could add .html to your URLs,
+ making them appear static. This feature is enabled in your config
+ file.
+- Added a new error template for use with native PHP errors.
+- Added "alternator" function in the :doc:`string
+ helpers <./helpers/string_helper>`.
+- Removed slashing from the input class. After much debate we decided
+ to kill this feature.
+- Change the commenting style in the scripts to the PEAR standard so
+ that IDEs and tools like phpDocumenter can harvest the comments.
+- Added better class and function name-spacing to avoid collisions with
+ user developed classes. All CodeIgniter classes are now prefixed with
+ CI\_ and all controller methods are prefixed with _ci to avoid
+ controller collisions. A list of reserved function names can be
+ :doc:`found here <general/controllers>`.
+- Redesigned how the "CI" super object is referenced, depending on
+ whether PHP 4 or 5 is being run, since PHP 5 allows a more graceful
+ way to manage objects that utilizes a bit less resources.
+- Deprecated: $this->db->use_table() has been deprecated. Please read
+ the :doc:`Active Record <./database/active_record>` page for
+ information.
+- Deprecated: $this->db->smart_escape_str() has been deprecated.
+ Please use this instead: $this->db->escape()
+- Fixed a bug in the exception handler which was preventing some PHP
+ errors from showing up.
+- Fixed a typo in the URI class. $this->total_segment() should be
+ plural: $this->total_segments()
+- Fixed some typos in the default calendar template
+- Fixed some typos in the user guide
+
+Version 1.2
+===========
+
+Release Date: March 21, 2006
+
+- Redesigned some internal aspects of the framework to resolve scoping
+ problems that surfaced during the beta tests. The problem was most
+ notable when instantiating classes in your constructors, particularly
+ if those classes in turn did work in their constructors.
+- Added a global function named
+ :doc:`get_instance() <general/ancillary_classes>` allowing the main
+ CodeIgniter object to be accessible throughout your own classes.
+- Added new :doc:`File Helper <./helpers/file_helper>`:
+ delete_files()
+- Added new :doc:`URL Helpers <./helpers/url_helper>`: base_url(),
+ index_page()
+- Added the ability to create your own :doc:`core
+ libraries <general/creating_libraries>` and store them in your local
+ application directory.
+- Added an overwrite option to the :doc:`Upload
+ class <./libraries/file_uploading>`, enabling files to be
+ overwritten rather than having the file name appended.
+- Added Javascript Calendar plugin.
+- Added search feature to user guide. Note: This is done using Google,
+ which at the time of this writing has not crawled all the pages of
+ the docs.
+- Updated the parser class so that it allows tag pars within other tag
+ pairs.
+- Fixed a bug in the DB "where" function.
+- Fixed a bug that was preventing custom config files to be
+ auto-loaded.
+- Fixed a bug in the mysql class bind feature that prevented question
+ marks in the replacement data.
+- Fixed some bugs in the xss_clean function
+
+Version Beta 1.1
+================
+
+Release Date: March 10, 2006
+
+- Added a :doc:`Calendaring class <./libraries/calendar>`.
+- Added support for running :doc:`multiple
+ applications <general/managing_apps>` that share a common CodeIgniter
+ backend.
+- Moved the "uri protocol" variable from the index.php file into the
+ config.php file
+- Fixed a problem that was preventing certain function calls from
+ working within constructors.
+- Fixed a problem that was preventing the $this->load->library function
+ from working in constructors.
+- Fixed a bug that occurred when the session class was loaded using the
+ auto-load routine.
+- Fixed a bug that can happen with PHP versions that do not support the
+ E_STRICT constant
+- Fixed a data type error in the form_radio function (form helper)
+- Fixed a bug that was preventing the xss_clean function from being
+ called from the validation class.
+- Fixed the cookie related config names, which were incorrectly
+ specified as $conf rather than $config
+- Fixed a pagination problem in the scaffolding.
+- Fixed a bug in the mysql class "where" function.
+- Fixed a regex problem in some code that trimmed duplicate slashes.
+- Fixed a bug in the br() function in the HTML helper
+- Fixed a syntax mistake in the form_dropdown function in the Form
+ Helper.
+- Removed the "style" attributes form the form helpers.
+- Updated the documentation. Added "next/previous" links to each page
+ and fixed various typos.
+
+Version Beta 1.0
+================
+
+Release Date: February 28, 2006
+
+First publicly released version.