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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 |
|---|---|
| 932 | /** |
| 933 | * Filters the array of protected Ajax actions. |
| 934 | * |
| 935 | * This filter is only fired when doing Ajax and the Ajax request has an 'action' property. |
| 936 | * |
| 937 | * @since 5.2.0 |
| 938 | * |
| 939 | * @param string[] $actions_to_protect Array of strings with Ajax actions to protect. |
| 940 | */ |
| 941 | $actions_to_protect = (array) apply_filters( 'wp_protected_ajax_actions', $actions_to_protect ); |
| 942 | |
| 943 | if ( ! in_array( $_REQUEST['action'], $actions_to_protect, true ) ) { |
| 944 | return false; |
| 945 | } |
| 946 | |
| 947 | return true; |
| 948 | } |
| 949 | |
| 950 | /** |