Calls the callback functions that have been added to an action hook.

Fires functions attached to a deprecated action hook.

Calls the callback functions that have been added to an action hook, specifying arguments in an array.

Returns whether or not an action hook is currently being processed.

Returns whether or not a filter hook is currently being processed.

Checks if any action has been registered for a hook.

Checks if any filter has been registered for a hook.

Gets the basename of a plugin.

Get the filesystem directory path (with trailing slash) for the plugin __FILE__ passed in.

Get the URL directory path (with trailing slash) for the plugin __FILE__ passed in.