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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 164 | _wp_ajax_menu_quick_search( $_REQUEST ); |
| 165 | |
| 166 | exit; |
| 167 | break; |
| 168 | case 'oembed-cache' : |
| 169 | $return = ( $wp_embed->cache_oembed( $_GET['post'] ) ) ? '1' : '0'; |
| 170 | die( $return ); |
| 171 | break; |
| 172 | default : |
| 173 | do_action( 'wp_ajax_' . $_GET['action'] ); |
| 174 | die('0'); |
| 175 | break; |
| 176 | endswitch; |
| 177 | endif; |
| 178 | |
| 179 | /** |
| 180 | * Sends back current comment total and new page links if they need to be updated. |
| 181 | * |
| 182 | * Contrary to normal success AJAX response ("1"), die with time() on success. |
| Line | Code |
| 1578 | die( '0' ); |
| 1579 | |
| 1580 | $dismissed[] = $pointer; |
| 1581 | $dismissed = implode( ',', $dismissed ); |
| 1582 | |
| 1583 | update_user_meta( get_current_user_id(), 'dismissed_wp_pointers', $dismissed ); |
| 1584 | die( '1' ); |
| 1585 | break; |
| 1586 | default : |
| 1587 | do_action( 'wp_ajax_' . $_POST['action'] ); |
| 1588 | die('0'); |
| 1589 | break; |
| 1590 | endswitch; |
| 1591 | ?> |
| 1592 | |