php实现压缩多个CSS与JS文件的方法

本文实例讲述了php实现压缩多个CSS与JS文件的方法。分享给大家供大家参考。具体实现方法如下：

1. 压缩css

代码如下:<?php   
header('Content-type: text/css');   
ob_start("compress");   
function compress($buffer) {   
    /* remove comments */   
    $buffer = preg_replace('!//*[^*]*/*+([^/][^*]*/*+)*/!', '', $buffer);   
    /* remove tabs, spaces, newlines, etc. */   
    $buffer = str_replace(array("/r/n", "/r", "/n", "/t", '  ', '    ', '    '), '', $buffer);   
    return $buffer;   
}     
   
/* your css files */   
include('galleria.css');   
include('articles.css');   
   
ob_end_flush();
使用方法如下:
代码如下:<link href="compress.php" rel="stylesheet" type="text/css" /><span id="tester">test</span>

2. 压缩js,利用jsmin类:

本实例源自:http://code.google.com/p/minify/
代码如下:header('Content-type: text/javascript');   
require 'jsmin.php';   
echo JSMin::minify(file_get_contents('common.js') . file_get_contents('common2.js'));

其中jsmin.php文件如下：

代码如下:
<?php
/**
 * jsmin.php - PHP implementation of Douglas Crockford's JSMin.
 *
 * This is pretty much a direct port of jsmin.c to PHP with just a few
 * PHP-specific performance tweaks. Also, whereas jsmin.c reads from stdin and
 * outputs to stdout, this library accepts a string as input and returns another
 * string as output.
 *
 * PHP 5 or higher is required.
 *
 * Permission is hereby granted to use this version of the library under the
 * same terms as jsmin.c, which has the following license:
 *
 * --
 * Copyright (c) 2002 Douglas Crockford  (www.crockford.com)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is furnished to do
 * so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.