The agent Technology of PHP development mode

In practical development, we often call third-party class libraries such as SOAP services. The use of these third-party components is not difficult, the most troublesome is the call, the general debugging means the most convenient is to record the log. Example: If you have the following third-party class libraries.

// filename: user.phpclassuser{    // 得到用户信息    public function getInfo($uid){     }}

　　

The calling code written by the general programmer may be: include ' user.php '; $face = new User (); $uid = 100; Parameter Write log $info = $face->getinfo ($uid); Return the results of the write log here is a question, if you want to use a third-party interface a lot, then this way will be a nightmare of the beginning; Here I use a proxy proxy way, in the Ruby language there is a very professional noun AOP can describe this technique, that is, dynamic class enhancement method.

// 代理技术classVProxy{     // 单例,如果在复杂资源时比较有用，如SOAP/DB等    staticprivate$_instance= array();         /**     * 单例模式返回实现(推荐)     *     * @param string $model 接口模型名     * @return object     */    staticpublicfunctiongetInstance($model)    {        $model= strtolower($model);        if(!isset(self::$_instance[$model])){            self::$_instance[$model] = newself($model);        }        returnself::$_instance[$model];    }     /**     * 当前调用接口的实例     *     * @var unknown_type     */    private$_model= null;    private$_modelName= ‘‘;     /**     * 构造函数     *     * @param string $model 接口模型名     */    publicfunction __construct($model){        include_once($model.‘.php‘);        $this->_modelName = $model;        $this->_model = new$model;    }     /**     * proxy核心方法     *     * @param string $functionName :方法名     * @param mixed $args :传给方法的参数     * @return unknown     */    publicfunction__call($functionName,$args)    {        // 调用接口        $result= call_user_func_array(array($this->_model, $functionName), $args));        // 写日志        writeLog($this->_modelName,$functionName,$args,$result);        // 返回结果        return$result;    }} // 调用实例$face= VProxy::getInstance(‘user‘);$info= $face->getInfo(100);

　　

The real example is just a finishing touch with, concrete implementation of the application than this complexity, the use of the above technology can also add a related method for the interface, this is similar to the characteristics of the object in JavaScript, specifically try it yourself! I often use this technology in thunder specific projects, such as the provision of public service interfaces for departments.

Transferred from: http://www.vquickphp.com/?a=blogview&id=25

The agent Technology of PHP development mode