| |
| |
| <!DOCTYPE html> |
| <!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]--> |
| <!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]--> |
| <head> |
| <meta charset="utf-8"> |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> |
| |
| <title>Welcome to CodeIgniter — CodeIgniter 3.1.10 documentation</title> |
| |
| |
| |
| |
| <link rel="shortcut icon" href="../_static/ci-icon.ico"/> |
| |
| |
| |
| <link href='https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic|Roboto+Slab:400,700|Inconsolata:400,700&subset=latin,cyrillic' rel='stylesheet' type='text/css'> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <link rel="stylesheet" href="../_static/css/citheme.css" type="text/css" /> |
| |
| |
| |
| <link rel="index" title="Index" |
| href="../genindex.html"/> |
| <link rel="search" title="Search" href="../search.html"/> |
| <link rel="top" title="CodeIgniter 3.1.10 documentation" href="../index.html"/> |
| <link rel="next" title="Installation Instructions" href="../installation/index.html"/> |
| <link rel="prev" title="CodeIgniter User Guide" href="../index.html"/> |
| |
| |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script> |
| |
| </head> |
| |
| <body class="wy-body-for-nav" role="document"> |
| |
| <div id="nav"> |
| <div id="nav_inner"> |
| |
| |
| |
| <div id="pulldown-menu" class="ciNav"> |
| <ul class="current"> |
| <li class="toctree-l1 current"><a class="current reference internal" href="#">Welcome to CodeIgniter</a></li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../installation/index.html">Installation Instructions</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../installation/downloads.html">Downloading CodeIgniter</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../installation/index.html">Installation Instructions</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../installation/upgrading.html">Upgrading From a Previous Version</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../installation/troubleshooting.html">Troubleshooting</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../overview/index.html">CodeIgniter Overview</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/getting_started.html">Getting Started</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/at_a_glance.html">CodeIgniter at a Glance</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/features.html">Supported Features</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/appflow.html">Application Flow Chart</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/mvc.html">Model-View-Controller</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/goals.html">Architectural Goals</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../tutorial/index.html">Tutorial</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../tutorial/static_pages.html">Static pages</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../tutorial/news_section.html">News section</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../tutorial/create_news_items.html">Create news items</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../contributing/index.html">Contributing to CodeIgniter</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../documentation/index.html">Writing CodeIgniter Documentation</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../DCO.html">Developer’s Certificate of Origin 1.1</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="index.html">General Topics</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="urls.html">CodeIgniter URLs</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="controllers.html">Controllers</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="reserved_names.html">Reserved Names</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="views.html">Views</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="models.html">Models</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="helpers.html">Helpers</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="libraries.html">Using CodeIgniter Libraries</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="creating_libraries.html">Creating Libraries</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="drivers.html">Using CodeIgniter Drivers</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="creating_drivers.html">Creating Drivers</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="core_classes.html">Creating Core System Classes</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="ancillary_classes.html">Creating Ancillary Classes</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="hooks.html">Hooks - Extending the Framework Core</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="autoloader.html">Auto-loading Resources</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="common_functions.html">Common Functions</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="compatibility_functions.html">Compatibility Functions</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="routing.html">URI Routing</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="errors.html">Error Handling</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="caching.html">Caching</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="profiling.html">Profiling Your Application</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="cli.html">Running via the CLI</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="managing_apps.html">Managing your Applications</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="environments.html">Handling Multiple Environments</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="alternative_php.html">Alternate PHP Syntax for View Files</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="security.html">Security</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="styleguide.html">PHP Style Guide</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../libraries/index.html">Libraries</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/benchmark.html">Benchmarking Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/caching.html">Caching Driver</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/calendar.html">Calendaring Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/cart.html">Shopping Cart Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/config.html">Config Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/email.html">Email Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/encrypt.html">Encrypt Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/encryption.html">Encryption Library</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/file_uploading.html">File Uploading Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/form_validation.html">Form Validation</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/ftp.html">FTP Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/image_lib.html">Image Manipulation Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/input.html">Input Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/javascript.html">Javascript Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/language.html">Language Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/loader.html">Loader Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/migration.html">Migrations Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/output.html">Output Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/pagination.html">Pagination Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/parser.html">Template Parser Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/security.html">Security Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/sessions.html">Session Library</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/table.html">HTML Table Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/trackback.html">Trackback Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/typography.html">Typography Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/unit_testing.html">Unit Testing Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/uri.html">URI Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/user_agent.html">User Agent Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/zip.html">Zip Encoding Class</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li> |
| </ul> |
| </li> |
| </ul> |
| |
| </div> |
| |
| |
| </div> |
| </div> |
| <div id="nav2"> |
| <a href="#" id="openToc"> |
| <img src="data:image/jpeg;base64,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" title="Toggle Table of Contents" alt="Toggle Table of Contents" /> |
| </a> |
| </div> |
| |
| <div class="wy-grid-for-nav"> |
| |
| |
| <nav data-toggle="wy-nav-shift" class="wy-nav-side"> |
| <div class="wy-side-nav-search"> |
| |
| <a href="../index.html" class="fa fa-home"> CodeIgniter</a> |
| |
| |
| <div role="search"> |
| <form id="rtd-search-form" class="wy-form" action="../search.html" method="get"> |
| <input type="text" name="q" placeholder="Search docs" /> |
| <input type="hidden" name="check_keywords" value="yes" /> |
| <input type="hidden" name="area" value="default" /> |
| </form> |
| </div> |
| </div> |
| |
| <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation"> |
| |
| |
| |
| <ul class="current"> |
| <li class="toctree-l1 current"><a class="current reference internal" href="#">Welcome to CodeIgniter</a></li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../installation/index.html">Installation Instructions</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../installation/downloads.html">Downloading CodeIgniter</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../installation/index.html">Installation Instructions</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../installation/upgrading.html">Upgrading From a Previous Version</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../installation/troubleshooting.html">Troubleshooting</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../overview/index.html">CodeIgniter Overview</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/getting_started.html">Getting Started</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/at_a_glance.html">CodeIgniter at a Glance</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/features.html">Supported Features</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/appflow.html">Application Flow Chart</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/mvc.html">Model-View-Controller</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/goals.html">Architectural Goals</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../tutorial/index.html">Tutorial</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../tutorial/static_pages.html">Static pages</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../tutorial/news_section.html">News section</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../tutorial/create_news_items.html">Create news items</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../contributing/index.html">Contributing to CodeIgniter</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../documentation/index.html">Writing CodeIgniter Documentation</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../DCO.html">Developer’s Certificate of Origin 1.1</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="index.html">General Topics</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="urls.html">CodeIgniter URLs</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="controllers.html">Controllers</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="reserved_names.html">Reserved Names</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="views.html">Views</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="models.html">Models</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="helpers.html">Helpers</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="libraries.html">Using CodeIgniter Libraries</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="creating_libraries.html">Creating Libraries</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="drivers.html">Using CodeIgniter Drivers</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="creating_drivers.html">Creating Drivers</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="core_classes.html">Creating Core System Classes</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="ancillary_classes.html">Creating Ancillary Classes</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="hooks.html">Hooks - Extending the Framework Core</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="autoloader.html">Auto-loading Resources</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="common_functions.html">Common Functions</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="compatibility_functions.html">Compatibility Functions</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="routing.html">URI Routing</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="errors.html">Error Handling</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="caching.html">Caching</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="profiling.html">Profiling Your Application</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="cli.html">Running via the CLI</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="managing_apps.html">Managing your Applications</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="environments.html">Handling Multiple Environments</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="alternative_php.html">Alternate PHP Syntax for View Files</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="security.html">Security</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="styleguide.html">PHP Style Guide</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../libraries/index.html">Libraries</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/benchmark.html">Benchmarking Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/caching.html">Caching Driver</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/calendar.html">Calendaring Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/cart.html">Shopping Cart Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/config.html">Config Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/email.html">Email Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/encrypt.html">Encrypt Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/encryption.html">Encryption Library</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/file_uploading.html">File Uploading Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/form_validation.html">Form Validation</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/ftp.html">FTP Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/image_lib.html">Image Manipulation Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/input.html">Input Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/javascript.html">Javascript Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/language.html">Language Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/loader.html">Loader Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/migration.html">Migrations Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/output.html">Output Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/pagination.html">Pagination Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/parser.html">Template Parser Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/security.html">Security Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/sessions.html">Session Library</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/table.html">HTML Table Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/trackback.html">Trackback Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/typography.html">Typography Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/unit_testing.html">Unit Testing Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/uri.html">URI Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/user_agent.html">User Agent Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../libraries/zip.html">Zip Encoding Class</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li> |
| </ul> |
| </li> |
| </ul> |
| |
| |
| |
| </div> |
| |
| </nav> |
| |
| <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"> |
| |
| |
| <nav class="wy-nav-top" role="navigation" aria-label="top navigation"> |
| <i data-toggle="wy-nav-top" class="fa fa-bars"></i> |
| <a href="../index.html">CodeIgniter</a> |
| </nav> |
| |
| |
| |
| <div class="wy-nav-content"> |
| <div class="rst-content"> |
| <div role="navigation" aria-label="breadcrumbs navigation"> |
| <ul class="wy-breadcrumbs"> |
| <li><a href="../index.html">Docs</a> »</li> |
| |
| <li>Welcome to CodeIgniter</li> |
| <li class="wy-breadcrumbs-aside"> |
| |
| </li> |
| <div style="float:right;margin-left:5px;" id="closeMe"> |
| <img title="Classic Layout" alt="classic layout" src="data:image/gif;base64,R0lGODlhFAAUAJEAAAAAADMzM////wAAACH5BAUUAAIALAAAAAAUABQAAAImlI+py+0PU5gRBRDM3DxbWoXis42X13USOLauUIqnlsaH/eY6UwAAOw==" /> |
| </div> |
| </ul> |
| <hr/> |
| </div> |
| <div role="main" class="document"> |
| |
| <div class="section" id="welcome-to-codeigniter"> |
| <h1>Welcome to CodeIgniter<a class="headerlink" href="#welcome-to-codeigniter" title="Permalink to this headline">¶</a></h1> |
| <p>CodeIgniter is an Application Development Framework - a toolkit - for |
| people who build web sites using PHP. Its goal is to enable you to |
| develop projects much faster than you could if you were writing code |
| from scratch, by providing a rich set of libraries for commonly needed |
| tasks, as well as a simple interface and logical structure to access |
| these libraries. CodeIgniter lets you creatively focus on your project |
| by minimizing the amount of code needed for a given task.</p> |
| <div class="section" id="who-is-codeigniter-for"> |
| <h2>Who is CodeIgniter For?<a class="headerlink" href="#who-is-codeigniter-for" title="Permalink to this headline">¶</a></h2> |
| <p>CodeIgniter is right for you if:</p> |
| <ul class="simple"> |
| <li>You want a framework with a small footprint.</li> |
| <li>You need exceptional performance.</li> |
| <li>You need broad compatibility with standard hosting accounts that run |
| a variety of PHP versions and configurations.</li> |
| <li>You want a framework that requires nearly zero configuration.</li> |
| <li>You want a framework that does not require you to use the command |
| line.</li> |
| <li>You want a framework that does not require you to adhere to |
| restrictive coding rules.</li> |
| <li>You are not interested in large-scale monolithic libraries like PEAR.</li> |
| <li>You do not want to be forced to learn a templating language (although |
| a template parser is optionally available if you desire one).</li> |
| <li>You eschew complexity, favoring simple solutions.</li> |
| <li>You need clear, thorough documentation.</li> |
| </ul> |
| </div> |
| </div> |
| |
| |
| </div> |
| <footer> |
| |
| <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> |
| |
| <a href="../installation/index.html" class="btn btn-neutral float-right" title="Installation Instructions">Next <span class="fa fa-arrow-circle-right"></span></a> |
| |
| |
| <a href="../index.html" class="btn btn-neutral" title="CodeIgniter User Guide"><span class="fa fa-arrow-circle-left"></span> Previous</a> |
| |
| </div> |
| |
| |
| <hr/> |
| |
| <div role="contentinfo"> |
| <p> |
| © Copyright 2014 - 2019, British Columbia Institute of Technology. |
| Last updated on Jan 16, 2019. |
| </p> |
| </div> |
| |
| Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. |
| |
| </footer> |
| </div> |
| </div> |
| |
| </section> |
| |
| </div> |
| |
| |
| |
| |
| |
| <script type="text/javascript"> |
| var DOCUMENTATION_OPTIONS = { |
| URL_ROOT:'../', |
| VERSION:'3.1.10', |
| COLLAPSE_INDEX:false, |
| FILE_SUFFIX:'.html', |
| HAS_SOURCE: false |
| }; |
| </script> |
| <script type="text/javascript" src="../_static/jquery.js"></script> |
| <script type="text/javascript" src="../_static/underscore.js"></script> |
| <script type="text/javascript" src="../_static/doctools.js"></script> |
| |
| |
| |
| |
| |
| <script type="text/javascript" src="../_static/js/theme.js"></script> |
| |
| |
| |
| |
| <script type="text/javascript"> |
| jQuery(function () { |
| SphinxRtdTheme.StickyNav.enable(); |
| }); |
| </script> |
| |
| |
| </body> |
| </html> |