本文实例讲述了PHP模版引擎原理、定义与用法。分享给大家供大家参考，具体如下：
template存放模版源文件
模版编译工具类
Compline.class.php
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<?php/*** 模板编译工具类*/class Compile{ private $template; //带编译文件 private $content; //需要替换的文本 private $comfile; //编译后的文件 private $left = '{'; //左界定符 private $right = '}'; //右界定符 private $value = array(); //值栈 private $php_turn; private $T_P = array(); private $T_R = array(); public function __construct($template, $compileFile, $config) { $this->template = $template; $this->comfile = $compileFile; $this->content = file_get_contents($template); if($config['php_turn'] === false) { $this->T_P[] = "/<\?(=|php|)(.+?)\?>/is"; $this->T_R[] = "<? \\1\\2? >"; } //{$var} $this->T_P[] = "/\{\\$([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)\}/"; //{foreach $b}或者{loop $b} $this->T_P[] = "/\{(loop|foreach) \\$([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)\}/i"; //{[K|V]} $this->T_P[] = "/\{([K|V])\}/"; //{/foreach}或者{\loop}或者{\if} $this->T_P[] = "/\{\/(loop|foreach|if)}/i"; //{if (condition)} $this->T_P[] = "/\{if (.* ?)\}/i"; //{(else if | elseif)} $this->T_P[] = "/\{(else if|elseif) (.* ?)\}/i"; //{else} $this->T_P[] = "/\{else\}/i"; //{#...# 或者 *...#，注释} $this->T_P[] = "/\{(\#|\*)(.* ?)(\#|\*)\}/"; $this->T_R[] = "<?php echo \$this->value['\\1']; ?>"; $this->T_R[] = "<?php foreach ((array)\$this->value['\\2'] as \$K => \$V) { ?>"; $this->T_R[] = "<?php echo \$\\1; ?>"; $this->T_R[] = "<?php } ?>"; $this->T_R[] = "<?php if (\\1) { ?>"; $this->T_R[] = "<?php }else if (\\2) { ?>"; $this->T_R[] = "<?php }else{ ?>"; $this->T_R[] = ""; } public function compile() { $this->c_all(); $this->c_staticFile(); file_put_contents($this->comfile, $this->content); } public function c_all() { $this->content = preg_replace($this->T_P, $this->T_R, $this->content); } /** * 加入对JavaScript文件的解析 * @return [type] [description] */ public function c_staticFile() { $this->content = preg_replace('/\{\!(.* ?)\!\}/', '<script src=\\1'.'?t='.time().'></script>', $this->content); } public function __set($name, $value) { $this->$name = $value; } public function __get($name) { if(isset($this->$name)) { return $this->$name; } else { return null; } }} |
Template.class.php
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<?php/*** Template*/class Template{ private $arrayConfig = array( 'suffix' => '.tpl', //模板的后缀 'templateDir' => 'template/', //模板所在的文件夹 'compileDir' => 'cache/', //编译后存放的目录 'cache_html' => true, //是否需要编译成静态的html文件 'suffix_cache' => '.html', //设置编译文件的后缀 'cache_time' => 7200, //设置多长时间自动更新 'php_turn' => true, //设置是否支持php原生代码 'debug' => false, ); public $file; //模板文件名,不带路径 public $debug = array(); //调试信息 private $value = array(); //值栈 private $compileTool; //编译器 private $controlData = array(); static private $instance = null; //模板类对象 public function __construct($arrayConfig = array()) { $this->debug['begin'] = microtime(true); $this->arrayConfig = array_merge($this->arrayConfig, $arrayConfig); $this->getPath(); if(!is_dir($this->arrayConfig['templateDir'])) { exit("template dir isn't found!"); } if(!is_dir($this->arrayConfig['compileDir'])) { if(strtoupper(substr(PHP_OS,0,3)) === 'WIN') { mkdir($this->arrayConfig['compileDir']); } else { mkdir($this->arrayConfig['compileDir'], 0770, true); } } include('Compile.class.php'); } public function getPath() { $this->arrayConfig['templateDir'] = strstr(realpath($this->arrayConfig['templateDir']), '\\', '/').'/'; $this->arrayConfig['compileDir'] = strstr(realpath($this->arrayConfig['compileDir'])), '\\', '/').'/'; } /** * 取得模板引擎的实例 */ public static function getInstance() { if(is_null(self::$instance)) { self::$instance = new Template(); } return self::$instance; } /** * 单独设置引擎参数 * 也支持一次性设置多个参数 */ public function setConfig($key, $value = null) { if(is_array($key)) { $this->arrayConfig = $key + $this->arrayConfig; } else { $this->arrayConfig[$key] = $value; } } /** * 获取当前模板引擎配置，仅供调试使用 */ public function getConfig($key = null) { if($key && array_key_exists($key, $this->arrayConfig)) { return $this->arrayConfig[$key]; } else { return $this->arrayConfig; } } /** * 注入单个变量 */ public function assign($key, $value) { $this->value[$key] = $value; } /** * 注入数组变量 */ public function assignArray($array) { if(is_array($array)) { foreach ($array as $k => $v) { $this->value[$k] = $v; } } } /** * 获取模板的位置 * @return [type] [description] */ public function path() { return $this->arrayConfig['templateDir'].$this->file.$this->arrayConfig['suffix']; } /** * 判断配置文件是否要求缓存 */ public function needCache() { return $this->arrayConfig['cache_html']; } /** * 判断是否需要缓存 */ public function reCache($file) { $flag = false; $cacheFile = $this->arrayConfig['compileDir'].md5($file).$this->arrayConfig['suffix_cache']; if($this->arrayConfig['cache_html'] === true) { //需要缓存 $timeFlag = (time() - @filemtime($cacheFile)) < $this->arrayConfig['cache_time'] ? true : false; if(is_file($cacheFile) && filesize($cacheFile) > 1 && $timeFlag) { //缓存存在且未过期 $flag = true; } else { $flag = false; } } return $flag; } /** * 展示模板 */ public function show($file) { $this->file = $file; if(!is_file($this->path())) { exit('找不到对应的模板'); } $compileFile = $this->arrayConfig['compileDir'].md5($file).'.php'; $cacheFile = $this->arrayConfig['compileDir'].md5($file).$this->arrayConfig['suffix_cache']; if($this->reCache($file) === false) { //如果需要缓存 $this->debug['cached'] = 'false'; $this->compileTool = new Compile($this->path(), $compileFile, $this->arrayConfig); if($this->needCache()) { ob_start(); } extract($this->value, EXTR_OVERWRITE); if(!is_file($compileFile) || fileatime($compileFile) < filemtime($this->path())) { $this->compileTool->value = $this->value; $this->compileTool->compile(); include $compileFile; } else { include $compileFile; } if($this->needCache()) { $message = ob_get_contents(); file_put_contents($cacheFile, $message); } } else { readfile($cacheFile); $this->debug['cached'] = 'true'; } $this->debug['spend'] = microtime(true) - $this->debug['begin']; $this->debug['count'] = count($this->value); $this->debug_info(); } public function debug_info() { if($this->arrayConfig['debug'] === true) { echo "<br/>", '-------------------- debug_info--------------', "<br/>"; echo '程序运行日期:', date("Y-m-d h:i:s"), "<br/>"; echo '模板解析耗时:', $this->debug['spend'], '秒', "<br/>"; echo '模板包含标签数目:', $this->debug['count'], "<br/>"; echo '是否使用静态缓存:', $this->debug['cached'], "<br/>"; echo '模板引擎实例参数:', var_dump($this->getConfig()); } } /** * 清楚缓存的html文件 * @return [type] [description] */ public function clean() { if($path === null) { $path = $this->arrayConfig['compileDir']; $path = glob($path.'* '.$this->arrayConfig['suffix_cache']); } else { $path = $this->arrayConfig['compileDir'].md5($path).$this->arrayConfig['suffix_cache']; } foreach ((array)$path as $v) { unlink($v); } }} |
test.php
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<?phpinclude 'Template.class.php';$tpl = new Template(array('debug' => true));$tpl->assign('data', 'hello world');$tpl->assign('person', 'htGod');$tpl->assign('data1', 3);$arr = array(1,2,3,4,'5',6);$tpl->assign('b', $arr);$tpl->show('member'); |
希望本文所述对大家PHP程序设计有所帮助。
