模板继承

来源：互联网发布：部落冲突7级法师数据编辑：程序博客网时间：2024/05/01 20:42

T.php

<?php define ('ROOT', dirname ( __FILE__ ) . DIRECTORY_SEPARATOR ); require_once'Smarty.class.php'; class T extends Smarty { const INSTANCE_NAME ='instanceName'; public function __construct() { // make sure E_STRICT is turned off // $this->error_reporting = E_ALL ^ E_NOTICE; $this->compile_dir = ROOT .'templates_c'; $this->template_dir = ROOT .'templates'; $this->cache_dir = ROOT .'cache'; $this->config_dir = ROOT .'config'; $this->caching = false; $this->security = false; $this->register_block ('block', 'smarty_block' ); $this->register_function ('extends', 'smarty_extends' ); $this->assign_by_ref ( self::INSTANCE_NAME, $this ); } public function __call($method, $args) { // $er = error_reporting ( E_ALL ^ E_NOTICE ); $ret = call_user_func_array ( array ( &$this->smarty, $method ), $args ); error_reporting ( $er ); return $ret; } public function __get($var) { // $er = error_reporting ( E_ALL ^ E_NOTICE ); $ret = $this->smarty->$var; error_reporting ( $er ); return $ret; } public function __set($var, $value) { // $er = error_reporting ( E_ALL ^ E_NOTICE ); $ret = ($this->smarty->$var = $value); error_reporting ( $er ); return $ret; } public function display($resource_name) { echo $this->fetch ( $resource_name ); } public function fetch($resource_name) { $ret = parent::fetch ( $resource_name ); while ( $resource = $this->_derived ) { $this->_derived = null; $ret = parent::fetch ( $resource ); } return $ret; } protected $smarty; // template inheritance public $_blocks = array (); public $_derived = null; } function smarty_block($params, $content, &$smarty, &$repeat) { if ($content === null) return; $name = $params ['name']; $ss = $smarty->get_template_vars ( T::INSTANCE_NAME ); if (! isset ( $ss->_blocks [$name] )) $ss->_blocks [$name] = $content; return $ss->_blocks [$name]; } function smarty_extends($params, &$smarty) { $ss = $smarty->get_template_vars ( T::INSTANCE_NAME ); $ss->_derived = $params ['file']; } ?>

box.html

<?xml version="1.0″ encoding="UTF-8″?> <!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Strict//EN" “http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8″ /> <style type="text/css"> { literal } body { margin: 0; padding: 0; font-family: Helvetica, Arial, sans-serif; font-size: 12px; } #wrap { margin: 50px auto; padding: 0; width: 500px; background: #dfd8c7; border: 1px solid #cfc7b7; } #head,#foot { position: relative; height: 11px; } #head #version { position: absolute; top: 0px; right: 3px; font-size: 9px; } #foot #date { position: absolute; bottom: 1px; left: 3px; font-size: 9px; } #body { background: #efe8d7; margin: 1px; font-size: 12px; } h1 { margin: 0; padding: 2px 5px 3px 4px; font-size: 16px; border-bottom: 1px solid #cfc7b7; } fieldset { border: none; margin: 0; padding: 0; } label { width: 220px; text-align: right; display: block; float: left; clear: left; margin: 0; padding: 7px 5px 3px 5px; } input { float: left; border: 1px solid #cfc7b7; margin: 5px; padding: 3px; } input[type="submit"] { clear: left; margin: 5px 5px 5px 236px; padding: 2px 10px; } a { color: #000; text-decoration: none; } a:hover { text-decoration: underline; } {/ literal } </style> <title>{block name="page_name"}{$page_name}{/block}</title> </head> <body> <div id="wrap"> <div id="head"> <div id="version"><a href="http://spinlock.ch/projects/swisdk/">SWISDK v2.2</a></div> </div> <div id="body"> <h1>{block name="page_name"}{$page_name}{/block}</h1> {block name="content"} {$content} {/block} <br style="line-height: 0; font-size: 1px" /> </div> <div id="foot"> <div id="date">{$smarty.now|date_format:"%d. %B %Y"}</div> </div> </div> {block name="messages"} {$messages} {/block} </body> </html>

404.html

{extends file="test/box.html"} {assign var="page_name" value="Site not found"} {block name="content"} <p>You can try going <a href="javascript:back(-1)">one step back</a> in your history.</p> {/block}

ps:

extends 标签的file属性可以是文件系统绝对路径, 或则是相对于smarty的template_dir属性所设置相对路径.

test.php

index.php

<?php require 'T.php'; // 初始化模板类 $t = new T(); // var_dump($t); $t->display('test/404.tpl'); ?>