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has_action › WordPress Function

Seit2.5.0
Veraltetn/v
› has_action ( $hook_name, $callback = false, $priority = false )
Parameter: (3)
  • (string) $hook_name The name of the action hook.
    Erforderlich: Ja
  • (callable|string|array|false) $callback Optional. The callback to check for. This function can be called unconditionally to speculatively check a callback that may or may not exist. Default false.
    Erforderlich: Nein
    Standard: false
  • (int|false) $priority Optional. The specific priority at which to check for the callback. Default false.
    Erforderlich: Nein
    Standard: false
Siehe:
Gibt zurück:
  • (bool|int) If `$callback` is omitted, returns boolean for whether the hook has anything registered. When checking a specific function, the priority of that hook is returned, or false if the function is not attached. If `$callback` and `$priority` are both provided, a boolean is returned for whether the specific function is registered at that priority.
Definiert in:
Codex:
Changelog:
  • 6.9.0

Checks if any action has been registered for a hook.

When using the $callback argument, this function may return a non-boolean value that evaluates to false (e.g. 0), so use the === operator for testing the return value.


Ähnliche Funktionen: add_action, do_action, has_translation, did_action, doing_action

Quellcode 

function has_action( $hook_name, $callback = false, $priority = false ) {
	return has_filter( $hook_name, $callback, $priority );
}