模板继承

来源：互联网发布：js判断单选框是否选中编辑：程序博客网时间：2024/05/01 17:29

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' ); ?>