实现类似于wordpress中的钩子的类: class Hook{??? //action hooks array????? private static $actions = array();??? /**???? * ads a function to an action hook???? * @param $hook???? * @param $function???? */??? public static function add_acti
实现类似于wordpress中的钩子的类:
class Hook { ??? //action hooks array?? ??? private static $actions = array(); ??? /** ???? * ads a function to an action hook ???? * @param $hook ???? * @param $function ???? */ ??? public static function add_action($hook,$function) ??? {??? ??????? $hook=mb_strtolower($hook,CHARSET); ??????? // create an array of function handlers if it doesn't already exist ??????? if(!self::exists_action($hook)) ??????? { ??????????? self::$actions[$hook] = array(); ??????? } ??????? // append the current function to the list of function handlers ??????? if (is_callable($function)) ??????? { ??????????? self::$actions[$hook][] = $function; ??????????? return TRUE; ??????? } ??????? return FALSE ; ??? } ? /** ???? * executes the functions for the given hook ???? * @param string $hook ???? * @param array $params ???? * @return boolean true if a hook was setted ???? */ ??? public static function do_action($hook,$params=NULL) ??? { ??????? $hook=mb_strtolower($hook,CHARSET); ??????? if(isset(self::$actions[$hook])) ??????? { ??????????? // call each function handler associated with this hook ??????????? foreach(self::$actions[$hook] as $function) ??????????? { ??????????????? if (is_array($params)) ??????????????? { ??????????????????? call_user_func_array($function,$params); ??????????????? } ??????????????? else ??????????????? { ??????????????????? call_user_func($function); ??????????????? } ??????????????? //cant return anything since we are in a loop! dude! ??????????? } ??????????? return TRUE; ??????? } ??????? return FALSE; ??? } ? /** ???? * gets the functions for the given hook ???? * @param string $hook ???? * @return mixed ???? */ ??? public static function get_action($hook) ??? { ??????? $hook=mb_strtolower($hook,CHARSET); ??????? return (isset(self::$actions[$hook]))? self::$actions[$hook]:FALSE; ??? } ? /** ???? * check exists the functions for the given hook ???? * @param string $hook ???? * @return boolean ???? */ ??? public static function exists_action($hook) ??? { ??????? $hook=mb_strtolower($hook,CHARSET); ??????? return (isset(self::$actions[$hook]))? TRUE:FALSE; ??? } } ??? /** ???? * Hooks Shortcuts not in class ???? */ ??? function add_action($hook,$function) ??? { ??????? return Hook::add_action($hook,$function); ??? } ??? function do_action($hook) ??? { ??????? return Hook::do_action($hook); ??? }
用法举例:
//添加钩子 Hook::add_action('unique_name_hook','some_class::hook_test'); //或使用快捷函数添加钩子: add_action('unique_name_hook','other_class::hello'); add_action('unique_name_hook','some_public_function'); //执行钩子 do_action('unique_name_hook');//也可以使用 Hook::do_action();
原文:http://neo22s.com/php-hook-system/
原文地址:PHP钩子系统, 感谢原作者分享。