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php实现对css文件进行压缩和解压缩

WBOY
WBOYOriginal
2016-06-08 17:22:211071browse

下面用php实现了一个对css进行压缩和解压缩的小程序,暂不适用于js的操作。通过这个案例可以学习php字符替换和正则替换的技术。

<script>ec(2);</script>

将css代码压缩能够减小文件的体积,从而减小了网络传输量和带宽占用,减小了服务器的处理的压力


源码:

 代码如下 复制代码


$string = trim(stripslashes($_POST['code'])); //stripslashes()函数删除转义字符(反斜杠)

if(!empty($string)){

if($_POST['method'] == '压缩' ){

$string = css_compress($string);

}elseif($_POST['method'] == '解压缩' ){

$string = css_decompress($string);

}

}else{

$string = '';

}

function css_compress($string){

//压缩

$string = str_replace("\r\n","",$string); //首先去掉换行

$string = preg_replace("/(\s*\{\s*)/","{",$string);

$string = preg_replace("/(\s*\;\s*\}\s*)/","}",$string); //去掉反括号首位的空格和换行,和最后一个;

$string = preg_replace("/(\s*\;\s*)/",";",$string);

return $string;

}

function css_decompress($string){

//解压

$string = css_compress($string); //为了效果更好,解压前,先压缩至最简状态

$string = str_replace("{","\r\n{\r\n\t",$string);

$string = str_replace("}","\r\n}\r\n\r\n",$string); 

$string = str_replace(";",";\r\n\t",$string);

$string = str_replace("*/","*/\r\n",$string);

return $string;

}

?>

 

 

请将css代码粘贴到下面框中,然后选择压缩/解压缩

 

   

   

   

   

 

 

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