PHP event 事件机制

 

<?php

/*

 * PHP 事件机制

 */

class baseClass{

    private $_e;

    public function __set($name,$value){

        if( strncasecmp($name,"on",2) === 0 ){

            if(!isset($this->_e[$name]))

                $this->_e[$name] = array();

            return array_push($this->_e[$name] , $value);

        }

    }

    public function __get($name){

        if( strncasecmp($name,"on",2) === 0 ){

            if(!isset($this->_e[$name]))

                $this->_e[$name] = array();

            return $this->_e[$name];

        }

    }

    public function raiseEvent($name, $parse){

         if(isset($this->_e[$name])){

             print_r($this->_e[$name]);

             foreach($this->_e[$name] as $handler)

                call_user_func($handler,$parse);

         }

    }

    public function save(){

        //xxx

        $this->raiseEvent("onSave", array());

    }

}

$InsA = new baseClass();

//1

$InsA->onSave = function($e){

    echo $e;

};

//2

class Log{

   static public function saveLog($e){

        echo "save Log".$e;

   }

}

$InsA->onSave = array("Log" , "saveLog");

$InsA->raiseEvent('onClick','success');

?>

生命只有一次。