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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.
| Line | Code |
|---|---|
| 879 | /** |
| 880 | * Filters the array of protected AJAX actions. |
| 881 | * |
| 882 | * This filter is only fired when doing AJAX and the AJAX request has an 'action' property. |
| 883 | * |
| 884 | * @since 5.2.0 |
| 885 | * |
| 886 | * @param string[] $actions_to_protect Array of strings with AJAX actions to protect. |
| 887 | */ |
| 888 | $actions_to_protect = (array) apply_filters( 'wp_protected_ajax_actions', $actions_to_protect ); |
| 889 | |
| 890 | if ( ! in_array( $_REQUEST['action'], $actions_to_protect, true ) ) { |
| 891 | return false; |
| 892 | } |
| 893 | |
| 894 | return true; |
| 895 | } |
| 896 | |
| 897 | /** |