【www.bbyears.com--php常用代码】
首先将所有 CSS 放到一个目录里，然后在此目录新建一个空的 CSS 文件，命名为 css.php（其实除了后缀命名随便）。
然后在 PHP 文件里放下边的代码：
代码如下
header("Content-type: text/css");
ob_start("compress");
function compress($buffer) {
$buffer = preg_replace("!/*[^*]**+([^/][^*]**+)*/!", "", $buffer);
$buffer = str_replace(array("rn", "r", "n", "t", " ", " ", " "), "", $buffer);
return $buffer;
}
/*include("colorpicker.css");
include("jquery-ui.css");
include("style.css");
include("switchery.min.css");*/
foreach( glob( "*.css" ) as $filename ) include $filename;
ob_end_flush();
引入 CSS 文件的代码换成引入这个 PHP 文件，例如：
压缩多个css为一个css
/*
Compress multiple CSS files into one and cache for an hour.
Use the same code for Javascript, but replace below "text/css" with "text/javascript" and of course make sure you include .js files instead of .css ones.
*/ www.111cn.net
ob_start("ob_gzhandler");
header("Content-type: text/css; charset: UTF-8");
header("Expires: ".gmdate("D, d M Y H:i:s", time() + 60*60)." GMT");
include("somefile.css");
echo "nn";
include("anotherfile.css");
echo "nn";
ob_flush();
下面整理可压缩css,js的函数
/**
* 合并css样式为一个文件
*
* @param unknown_type $urls
* @param unknown_type $path
* @param unknown_type $tmpl_path
* @return unknown
*/
function parse_css($urls,$path="./static/",$tmpl_path="."){
$url = md5(implode(",",$urls));
$css_url = $path.$url.".css";
if(!file_exists($css_url)){
if(!file_exists($path))mkdir($path,0777);
$css_content = "";
foreach($urls as $url){
$css_content .= @file_get_contents($url);
}
$css_content = preg_replace("/[rn]/","",$css_content);
$css_content = str_replace("../images/",$tmpl_path."/images/",$css_content);
@file_put_contents($css_url,$css_content);
}
return $css_url;
}
/**
* 合并js www.111cn.net为一个文件
*
* @param unknown_type $urls
* @param unknown_type $path
* @return unknown
*/
function parse_script($urls,$path="./static/"){
$url = md5(implode(",",$urls));
$js_url = $path.$url.".js";
if(!file_exists($js_url))
{
if(!file_exists($path))mkdir($path,0777);
require_once "inc/javascriptpacker.php";
$js_content = "";
foreach($urls as $url)
{
$append_content = @file_get_contents($url)."rn";
$packer = new JavaScriptPacker($append_content);
$append_content = $packer->pack();
$js_content .= $append_content;
}
@file_put_contents($js_url,$js_content);
}
return $js_url;
}
前台
js调用
$pagejs[] = $tplurl."js/jump.js";
$jsfile=parse_script($pagejs,"./template/default/js/",".");
?>
<script type="text/javascript" src=""></script>
css调用
$pagecss[] = $tplurl."style/index_top.css";
$pagecss[] = $tplurl."style/index.css";
$cssfile=parse_css($pagecss,"./template/default/style/",".");
?>
PHP 文件里就包含了所有被压缩的 CSS 代码，而且可以自动引入 CSS 目录里的所有 CSS 文件，不用在新建 CSS 文件的时候再修改这个 PHP 文件。