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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 |
|---|---|
| 1033 | /** |
| 1034 | * Filters the array of protected Ajax actions. |
| 1035 | * |
| 1036 | * This filter is only fired when doing Ajax and the Ajax request has an 'action' property. |
| 1037 | * |
| 1038 | * @since 5.2.0 |
| 1039 | * |
| 1040 | * @param string[] $actions_to_protect Array of strings with Ajax actions to protect. |
| 1041 | */ |
| 1042 | $actions_to_protect = (array) apply_filters( 'wp_protected_ajax_actions', $actions_to_protect ); |
| 1043 | |
| 1044 | if ( ! in_array( $_REQUEST['action'], $actions_to_protect, true ) ) { |
| 1045 | return false; |
| 1046 | } |
| 1047 | |
| 1048 | return true; |
| 1049 | } |
| 1050 | |
| 1051 | /** |