PHP面向切面编程组件(4)

<?php 
/**
 * 扩展家族
 *
 * @author Mr.Jin
 */ 
class ExtensionFamily implements Extension{ 
    public $_extensionArray = array(); 
     
    /**
     *
     * @param type $extName 扩展名
     * @param Extension $ext 实现Extension的对象
     */ 
    public function addExtension($extName, Extension $ext){ 
        $this->_extensionArray[$extName] = $ext; 
    } 
     
    public function beforeAppend(&$params){ 
        foreach($this->_extensionArray as $ext){ 
            $ext->beforeAppend($params); 
        } 
    } 
     
    public function afterAppend(&$params) { 
        foreach($this->_extensionArray as $ext){ 
            $ext->afterAppend($params); 
        } 
    } 
} 
 
?> 
<?php
/**
 * 扩展家族
 *
 * @author Mr.Jin
 */
class ExtensionFamily implements Extension{
    public $_extensionArray = array();
   
    /**
     *
     * @param type $extName 扩展名
     * @param Extension $ext 实现Extension的对象
     */
    public function addExtension($extName, Extension $ext){
        $this->_extensionArray[$extName] = $ext;
    }
   
    public function beforeAppend(&$params){
        foreach($this->_extensionArray as $ext){
            $ext->beforeAppend($params);
        }
    }
   
    public function afterAppend(&$params) {
        foreach($this->_extensionArray as $ext){
            $ext->afterAppend($params);