Function: Retrieves the number of times a filter has been applied during the current request.

Function: Fires functions attached to a deprecated filter hook.

Function: Fires functions attached to a deprecated action hook.

Function: Set the activation hook for a plugin.

Function: Sets the deactivation hook for a plugin.

Function: Sets the uninstallation hook for a plugin.

Function: Calls the ‘all’ hook, which will process the functions hooked into it.

Function: Checks if any action has been registered for a hook.

Function: Builds a unique string ID for a hook callback function.

Function: Removes a callback function from an action hook.

Function: Removes all of the callback functions from an action hook.

Function: Gets the basename of a plugin.

Function: Register a plugin’s real path.

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

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

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

Function: Checks if any filter has been registered for a hook.

Function: Retrieves the number of times an action has been fired during the current request.

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

Function: Calls the callback functions that have been added to a filter hook, specifying arguments in an array.

Function: Removes a callback function from a filter hook.

Function: Removes all of the callback functions from a filter hook.

Function: Retrieves the name of the current filter hook.

Function: Retrieves the name of the current action hook.

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

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

Function: Adds a callback function to an action hook.