php利用反射实现插件机制的方法
本文实例讲述了php利用反射实现插件机制的方法。分享给大家供大家参考。具体实现方法如下：
<?php
/**
* @name PHP反射API--利用反射技术实现的插件系统架构
*/
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);
希望本文所述对大家的php程序设计有所帮助。