wp_ajax_<action>

The WordPress Core wp ajax action hook.

Description

add_action( 'wp_ajax_<action>', (string) $wp_ajax_str_replace_get_action, (int) $int ); 

Parameters (2)

0. $wp_ajax_str_replace_get_action (string) => 'wp_ajax_' . str_replace( '-', '_', $_GET['action'] )
The wp ajax str replace get action.
1. $int (int) => 1
The int.

Usage

To run the hook, copy the example below.
  1. // run the action 
  2. do_action( 'wp_ajax_{$action}', $wp_ajax_str_replace_get_action, $int ); 
The following example is for adding a hook callback.
  1. // define the wp_ajax_<action> callback 
  2. function action_wp_ajax_action( $wp_ajax_str_replace_get_action, $int ) { 
  3. // make action magic happen here... 
  4. }; 
  5.  
  6. // add the action 
  7. add_action( "wp_ajax_{$action}", 'action_wp_ajax_action', 10, 2 ); 
To remove a hook callback, use the example below.
  1. // remove the action 
  2. remove_action( "wp_ajax_{$action}", 'action_wp_ajax_action', 10, 2 ); 

Defined (3)

The action is defined in the following location(s).

/wp-admin/admin-ajax.php  
  1. add_action( 'wp_ajax_' . $_GET['action'], 'wp_ajax_' . str_replace( '-', '_', $_GET['action'] ), 1 ); 
  1. add_action( 'wp_ajax_' . $_POST['action'], 'wp_ajax_' . str_replace( '-', '_', $_POST['action'] ), 1 ); 
  1. do_action( 'wp_ajax_' . $_REQUEST['action'] );