has_action()

最后更新于：2021-11-27 04:36:26

Checks if any action has been registered for a hook.

参数

$hook_name

(string) (Required) The name of the action hook.

$callback

(callable|false) (Optional) The callback to check for.

Default value: false

响应

(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.

源文件

文件: gc-includes/plugin.php

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