php利用反射實(shí)現(xiàn)插件機(jī)制的方法

    本文實(shí)例講述了php利用反射實(shí)現(xiàn)插件機(jī)制的方法。分享給大家供大家參考。具體實(shí)現(xiàn)方法如下：
    代碼如下:
    <?php
    /**
    * @name PHP反射API--利用反射技術(shù)實(shí)現(xiàn)的插件系統(tǒng)架構(gòu)
    */
    interface Iplugin{
    public static function getName();
    }
    function findPlugins(){
    $plugins = array();
    foreach (get_declared_classes() as $class){
    $reflectionClass = new ReflectionClass($class);
    if ($reflectionClass->implementsInterface('Iplugin')) {
    $plugins[] = $reflectionClass;
    }
    }
    return $plugins;
    }
    function computeMenu(){
    $menu = array();
    foreach (findPlugins() as $plugin){
    if ($plugin->hasMethod('getMenuItems')) {
    $reflectionMethod = $plugin->getMethod('getMenuItems');
    if ($reflectionMethod->isStatic()) {
    $items = $reflectionMethod->invoke(null);
    } else {
    $pluginInstance = $plugin->newInstance();
    $items = $reflectionMethod->invoke($pluginInstance);
    }
    $menu = array_merge($menu,$items);
    }
    }
    return $menu;
    }
    function computeArticles(){
    $articles = array();
    foreach (findPlugins() as $plugin){
    if ($plugin->hasMethod('getArticles')) {
    $reflectionMethod = $plugin->getMethod('getArticles');
    if ($reflectionMethod->isStatic()) {
    $items = $reflectionMethod->invoke(null);
    } else {
    $pluginInstance = $plugin->newInstance();
    $items = $reflectionMethod->invoke($pluginInstance);
    }
    $articles = array_merge($articles,$items);
    }
    }
    return $articles;
    }
    class MycoolPugin implements Iplugin {
    public static function getName(){
    return 'MycoolPlugin';
    }
    public static function getMenuItems(){
    return array(array('description'=>'MycoolPlugin','link'=>'/MyCoolPlugin'));
    }
    public static function getArticles(){
    return array(array('path'=>'/MycoolPlugin','title'=>'This is a really cool article','text'=> 'xxxxxxxxx' ));
    }
    }
    $menu = computeMenu();
    $articles = computeArticles();
    print_r($menu);
    print_r($articles);
    希望本文所述對(duì)大家的php程序設(shè)計(jì)有所幫助。