public function preHook($hookName, $cb) {
		$args = [$hookName, $cb];
		return call_user_func_array([$this->getHookManager(), 'preHook'], $args);
	}
public function preHook($hookName, $cb) {
		$args = [$hookName, $cb];
		return call_user_func_array([$this->getHookManager(), 'preHook'], $args);
	}
public function preHook ( $ hookName , $ cb ) { $ args = [ $ hookName , $ cb ] ; return call_user_func_array ( [ $ this -> getHookManager ( ) , 'preHook' ] , $ args ) ; }
Set a "pre" hook.
@param string   $hookName
@param Callable $cb
@return mixed
Set a pre hook .