Title: Need some explaination about wp-includes/plugin.php/ do_action function
Last modified: August 20, 2016

---

# Need some explaination about wp-includes/plugin.php/ do_action function

 *  [php-coder](https://wordpress.org/support/users/php-coder/)
 * (@php-coder)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/need-some-explaination-about-wp-includespluginphp-do_action-function/)
 * In login.php i got=>
 *     ```
       do_action( 'login_enqueue_scripts' );
       do_action( 'login_head' );
       ```
   
 * From wp-includes/plugin.php i get the definition of do_action function.
 * _[Code moderated as per the [Forum Rules](http://codex.wordpress.org/Forum_Welcome#Posting_Code).
   Do **not** re-insert it but use the [pastebin](http://wordpress.pastebin.com/)]_
 * What does this do function do ? So far what i can understand it call some function
   getting from parameter. Am i right ?
 * Then what do these line do ?
 *     ```
       do_action( 'login_enqueue_scripts' );
       do_action( 'login_head' );
       ```
   
 * What are ‘login_enqueue_scripts’ and ‘login_head’ ?
 * Doing print_r($wp_filter[$tag][‘function’] i get this result=>
 * [http://pastebin.com/U2gWZLKd](http://pastebin.com/U2gWZLKd)

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/need-some-explaination-about-wp-includespluginphp-do_action-function/#post-2376999)
 * [http://codex.wordpress.org/Function_Reference/do_action](http://codex.wordpress.org/Function_Reference/do_action)
 *  Thread Starter [php-coder](https://wordpress.org/support/users/php-coder/)
 * (@php-coder)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/need-some-explaination-about-wp-includespluginphp-do_action-function/#post-2377001)
 * [@esmi](https://wordpress.org/support/users/esmi/), What is hook ?
 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/need-some-explaination-about-wp-includespluginphp-do_action-function/#post-2377007)
 * Do try searching [the Codex](http://codex.wordpress.org/Main_Page). The documentation
   is meant to be used.
    [http://codex.wordpress.org/Plugin_API/Hooks](http://codex.wordpress.org/Plugin_API/Hooks)
 *  Thread Starter [php-coder](https://wordpress.org/support/users/php-coder/)
 * (@php-coder)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/need-some-explaination-about-wp-includespluginphp-do_action-function/#post-2377162)
 * What does this do-while loop do ?
 * What does this code do internally in do_action ?

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Need some explaination about wp-includes/plugin.php/ do_action function’
is closed to new replies.

 * In: [Hacks](https://wordpress.org/support/forum/plugins-and-hacks/hacks/)
 * 4 replies
 * 2 participants
 * Last reply from: [php-coder](https://wordpress.org/support/users/php-coder/)
 * Last activity: [14 years, 6 months ago](https://wordpress.org/support/topic/need-some-explaination-about-wp-includespluginphp-do_action-function/#post-2377162)
 * Status: not resolved

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