写了一个简单实用的PHP模板引擎

来源：互联网发布：java怎么学编辑：程序博客网时间：2024/05/22 15:09

PHP模板引擎很多，但要么很庞大，要么效率很低，如果只是要实现PHP代码与程序分离，就只要一个简单的模板引擎就行了。今天抽空写了一个。

xt.class.php

<?php

* Created on 2011-10-08

* @author xyl

* This is simple template engine for your site

class XT{

var $folder="template";//模板文件目录

var $t_type=".html";//模板文件类型

var $data=array();

var $subtp=array();//字模板

var $t_cache="./tcache";//模板缓存目录

var $compile=false;//调试

var $content_path="";

function XT(){

if(!file_exists($this->t_cache)){

mkdir($this->t_cache) or die("Failed to create cache directory:".$this->t_cache);

}

function setdata($k,$v){

$this->data[$k]=$v;

}

function subtemplate($filename){

if(is_array($filename)){

foreach($filename as $v){

$this->parse($v);

}

}else{

$this->parse($filename);

}

function __parsedata($content){

//模板包含

$this->subtp=array();

preg_match_all("//iu",$content,$rt);

if(!empty($rt[1][0])){

foreach($rt[1] as $v){

if(!empty($v)){

$this->subtp[$v]=$v;

}

if(!empty($this->subtp)){

$this->subtemplate($this->subtp,true);

}

$content = preg_replace("//iu", "<?php include('$this->t_cache/\\1.php');?>", $content);

//变量

$content = preg_replace("/\{(\\\$[a-z0-9_]+)\}/s", "<?=\\1?>", $content);

//逻辑

$content = preg_replace("//iu", "<?php if(\\1) { ?>", $content);

$content = preg_replace("//iu", "<?php } ?>", $content);

//循环

$content = preg_replace("//iu", "<?php foreach(\\1) { ?>", $content);

$content = preg_replace("//iu", "<?php } ?>", $content);

return $content;

}

function parse($filename=null,$sub=false){

$filename=(empty($filename)?basename($_SERVER["PHP_SELF"],".php"):$filename);

$content_path=$this->t_cache."/".$filename.".php";

if(!file_exists($content_path)||$this->compile){

$content=implode("",file($this->folder.'/'.$filename.$this->t_type));

$content=$this->__parsedata($content);

file_put_contents($content_path,$content);

}

!$sub?$this->content_path=$content_path:'';

}

function out(){

extract($this->data);

include_once($this->content_path);

}

用法:

test.php

<?php

* Created on 2011-9-29

* To change the template for this generated file go to

* Window - Preferences - PHPeclipse - PHP - Code Templates

include("xt.class.php");

$title="测试";

$content="内容";

$footer="底部";

$arr=array("a","b");

$xt=new XT();

//通过setdata方法赋值给模板

$xt->setdata('title',$title);

$xt->setdata('content',$content);

$xt->setdata('arr',$arr);

$xt->setdata('chk',true);

//调试模板开启，正式用时关闭，默认是关闭的

$xt->compile=true;

//编译模板,模板文件默认与当前页面同名，如当前文件为test.php,模板文件则对应于template/test.html

$xt->parse();

//输出内容

$xt->out();

test.html

<html>

<head>{$title}</head>

<body>

{$content}

{$content}

{$v}

</body>

</html>