本文实例讲述了Zend Framework框架Smarty扩展实现方法。分享给大家供大家参考，具体如下：
今天总结一下ZF框架中扩展Smarty模板的方法，在ZF帮助文档中已经有比较详细的介绍，在这我稍微多说一些。
一.将smarty的核心文件包放在lib文件夹下，文件包中要包括（internals/,plugins/,Config_File.class.php,Smarty.class.php,Smarty_Compiler.class.php,debug.tpl）.
二.在Zend/View下添加文件：Smarty.php ，文件的内容如下：
<?php/*** Zend_View_Interface*/require_once 'Zend/View/Interface.php';/*** Smarty */require_once("smarty/Smarty.class.php");/*** 创建Smarty视图*/class Zend_View_Smarty implements Zend_View_Interface{ /** * Smarty object * @var Smarty */ protected $_smarty; /** * Constructor * * @param string $tmplPath * @param array $extraParams * @return void */ public function __construct($tmplPath = null, $extraParams = array()) { $this->_smarty = new Smarty; if (null !== $tmplPath) { $this->setScriptPath($tmplPath); } foreach ($extraParams as $key => $value) { $this->_smarty->$key = $value; } } /** * Return the template engine object * * @return Smarty */ public function getEngine() { return $this->_smarty; } /** * Set the path to the templates * * @param string $path The directory to set as the path. * @return void */ public function setScriptPath($path) { if (is_readable($path)) { $this->_smarty->template_dir = $path; return; } throw new Exception('Invalid path provided'); } /** * set smarty缓存 * @author lengfeng */ public function setCompilePath($path){ if (is_readable($path)) { $this->_smarty->compile_dir = $path; return; } throw new Exception('Invalid path provided'); } /** * set smarty 编译后文档 * @author lengfeng */ public function setCachePath($path){ if (is_readable($path)) { $this->_smarty->cache_dir = $path; return; } throw new Exception('Invalid path provided'); } /** * Retrieve the current template directory * * @return string */ public function getScriptPaths() { return array($this->_smarty->template_dir); } /** * Alias for setScriptPath * * @param string $path * @param string $prefix Unused * @return void */ public function setBasePath($path, $prefix = 'Zend_View') { return $this->setScriptPath($path); } /** * Alias for setScriptPath * * @param string $path * @param string $prefix Unused * @return void */ public function addBasePath($path, $prefix = 'Zend_View') { return $this->setScriptPath($path); } /** * Assign a variable to the template * * @param string $key The variable name. * @param mixed $val The variable value. * @return void */ public function __set($key, $val) { $this->_smarty->assign($key, $val); } /** * Retrieve an assigned variable * * @param string $key The variable name. * @return mixed The variable value. */ public function __get($key) { return $this->_smarty->get_template_vars($key); } /** * Allows testing with empty() and isset() to work * * @param string $key * @return boolean */ public function __isset($key) { return (null !== $this->_smarty->get_template_vars($key)); } /** * Allows unset() on object properties to work * * @param string $key * @return void */ public function __unset($key) { $this->_smarty->clear_assign($key); } /** * Assign variables to the template * * Allows setting a specific key to the specified value, OR passing an array * of key => value pairs to set en masse. * * @see __set() * @param string|array $spec The assignment strategy to use (key or array of key * => value pairs) * @param mixed $value (Optional) If assigning a named variable, use this * as the value. * @return void */ public function assign($spec, $value = null) { if (is_array($spec)) { $this->_smarty->assign($spec); return; } $this->_smarty->assign($spec, $value); } /** * Clear all assigned variables * * Clears all variables assigned to Zend_View either via {@link assign()} or * property overloading ({@link __get()}/{@link __set()}). * * @return void */ public function clearVars() { $this->_smarty->clear_all_assign(); } /** * Processes a template and returns the output. * * @param string $name The template to process. * @return string The output. */ public function render($name) { return $this->_smarty->fetch($name); } /** * 设置是否生成缓存 * 如果没有参数,默认为true */ public function setCache($bool){ if (isset($bool)) { $this->_smarty->caching = $bool; return; } }} 三.在app文件夹下创建cache ，compile 文件夹
四.在config.ini 配置文件中加入
dir.compile = ../app/compiledir.cache = ../app/cache
三，四两步可以参见前面关于zendfreamwork框架搭建网站相关教程
五.在application.php 文件中添加
/*** 初始化smarty视图**/private function _initSmartyView(){ $view = new Zend_View_Smarty(); $view->setBasePath($this->_pathConfig->dir->viewBase); $view->setScriptPath($this->_pathConfig->dir->viewBase."/scripts"); $view->setCompilePath($this->_pathConfig->dir->compile); $view->setCachePath($this->_pathConfig->dir->cache); $smarty=$view->getEngine(); $smarty->caching=false; $smarty->debugging = true; $smarty->compile_check = true; $smarty->left_delimiter = "<{"; //定义标示符 $smarty->right_delimiter = "}>"; $registry = Zend_Registry::getInstance(); $registry->set('smartyview',$smarty); //smarty对象 $registry->set('sview',$view); } 并在 函数 init()中加入
$this->_initSmartyView();
六.在Controller中调用
因为已经将对象注册，所以可以如下调用：
$view = Zend_Registry::getInstance()->get("smartyview");//注意这是smarty对象，使用smarty的那些语法，比如 $view->assign("user","root");$view = Zend_Registry::getInstance()->get("sview"); //这是zf的view对象，按zf中的那些方法用，不用改变。//按这样，你如果要将以前写的代码改为用smaty，后台不用变了，只需要将视图文件改变就行了 
