diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 5fc86b1..23fd958 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -396,6 +396,7 @@
       -  Added method ``post_get()`` and changed ``get_post()`` to search in GET data first. Both methods' names now properly match their GET/POST data search priorities.
       -  Changed method ``_fetch_from_array()`` to parse array notation in field name.
       -  Added an option for ``_clean_input_keys()`` to return FALSE instead of terminating the whole script.
+      -  Deprecated the ``is_cli_request()`` method, it is now an alias for the new :php:func:`is_cli()` common function.
 
    -  :doc:`Common functions <general/common_functions>` changes include:
 
@@ -404,6 +405,7 @@
       -  Removed redundant conditional to determine HTTP server protocol in :php:func:`set_status_header()`.
       -  Changed ``_exception_handler()`` to respect php.ini *display_errors* setting.
       -  Added function :php:func:`is_https()` to check if a secure connection is used.
+      -  Added function :php:func:`is_cli()` to replace the ``CI_Input::is_cli_request()`` method.
       -  Added function :php:func:`function_usable()` to check if a function exists and is not disabled by `Suhosin <http://www.hardened-php.net/suhosin/>`.
       -  Removed the third (`$php_error`) from function :php:func:`log_message()`.
 
diff --git a/user_guide_src/source/general/cli.rst b/user_guide_src/source/general/cli.rst
index 4145d5c..4f3b07d 100644
--- a/user_guide_src/source/general/cli.rst
+++ b/user_guide_src/source/general/cli.rst
@@ -23,7 +23,7 @@
 
 -  Run your cron-jobs without needing to use *wget* or *curl*
 -  Make your cron-jobs inaccessible from being loaded in the URL by
-   checking for ``$this->input->is_cli_request()``
+   checking the return value of :func:`is_cli()`.
 -  Make interactive "tasks" that can do things like set permissions,
    prune cache folders, run backups, etc.
 -  Integrate with other applications in other languages. For example, a
diff --git a/user_guide_src/source/general/common_functions.rst b/user_guide_src/source/general/common_functions.rst
index e085ef8..2dfec9c 100644
--- a/user_guide_src/source/general/common_functions.rst
+++ b/user_guide_src/source/general/common_functions.rst
@@ -173,6 +173,19 @@
 Returns TRUE if a secure (HTTPS) connection is used and FALSE
 in any other case (including non-HTTP requests).
 
+is_cli()
+========
+
+.. php:function:: is_cli()
+
+	:returns:	bool
+
+Returns TRUE if the application is run through the command line
+and FALSE if not.
+
+.. note:: This function checks both if the ``PHP_SAPI`` value is 'cli'
+	or if the ``STDIN`` constant is defined.
+
 function_usable()
 =================
 
diff --git a/user_guide_src/source/helpers/date_helper.rst b/user_guide_src/source/helpers/date_helper.rst
index 5dfee8b..8126eba 100644
--- a/user_guide_src/source/helpers/date_helper.rst
+++ b/user_guide_src/source/helpers/date_helper.rst
@@ -80,7 +80,7 @@
 	$time = time();
 	echo standard_date($format, $time);
 
-.. note:: This function is DEPRECATED.Use the native ``date()`` combined with
+.. note:: This function is DEPRECATED. Use the native ``date()`` combined with
 	`DateTime's format constants
 	<http://www.php.net/manual/en/class.datetime.php#datetime.constants.types>`_
 	instead:
diff --git a/user_guide_src/source/installation/upgrade_300.rst b/user_guide_src/source/installation/upgrade_300.rst
index e8fdd0b..8f9cc1b 100644
--- a/user_guide_src/source/installation/upgrade_300.rst
+++ b/user_guide_src/source/installation/upgrade_300.rst
@@ -457,4 +457,28 @@
 	$this->router->method;
 
 .. note:: Those methods are still available, but you're strongly encouraged to remove their usage
+	sooner rather than later.
+
+Input library method is_cli_request()
+=====================================
+
+Calls to the ``CI_Input::is_cli_request()`` method are necessary at many places
+in the CodeIgniter internals and this is often before the :doc:`Input Library
+<../libraries/input>` is loaded. Because of that, it is being replaced by a common
+function named :php:func:`is_cli()` and this method is now just an alias.
+
+The new function is both available at all times for you to use and shorter to type.
+
+::
+
+	// Old
+	$this->input->is_cli_request();
+
+	// New
+	is_cli();
+
+``CI_Input::is_cli_request()`` is now now deprecated and scheduled for removal in
+CodeIgniter 3.1+.
+
+.. note:: This method is still available, but you're strongly encouraged to remove its usage
 	sooner rather than later.
\ No newline at end of file
diff --git a/user_guide_src/source/libraries/input.rst b/user_guide_src/source/libraries/input.rst
index fb245d7..b58ed2f 100644
--- a/user_guide_src/source/libraries/input.rst
+++ b/user_guide_src/source/libraries/input.rst
@@ -315,6 +315,9 @@
 
 	$this->input->is_cli_request()
 
+.. note:: This method is DEPRECATED and is now just an alias for the
+	:php:func:`is_cli()` function.
+
 $this->input->method()
 ======================