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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 |
|---|---|
| 1191 | /** |
| 1192 | * Filters the array of protected Ajax actions. |
| 1193 | * |
| 1194 | * This filter is only fired when doing Ajax and the Ajax request has an 'action' property. |
| 1195 | * |
| 1196 | * @since 5.2.0 |
| 1197 | * |
| 1198 | * @param string[] $actions_to_protect Array of strings with Ajax actions to protect. |
| 1199 | */ |
| 1200 | $actions_to_protect = (array) apply_filters( 'wp_protected_ajax_actions', $actions_to_protect ); |
| 1201 | |
| 1202 | if ( ! in_array( $_REQUEST['action'], $actions_to_protect, true ) ) { |
| 1203 | return false; |
| 1204 | } |
| 1205 | |
| 1206 | return true; |
| 1207 | } |
| 1208 | |
| 1209 | /** |