php删除文件夹/目录下所文件(包含目录)

 <?php
 function strip_selected_tags($text, $tags = array())
   {
       $args = func_get_args();
       $text = array_shift($args);
       $tags = func_num_args() > 2 ? array_diff($args,array($text))  : (array)$tags;
       foreach ($tags as $tag){
           if(preg_match_all('/<'.$tag.'[^>]*>(.*)</'.$tag.'>/iU', $text, $found)){
               $text = str_replace($found[0],$found[1],$text);
         }
       }       return $text;
   }
?>

 <?php
$tags = array();
$tags[0]='a';
$tags[1]='p';
 $str = "<a href=http://www.111cn.net>link</a><p>help</p>";
echo strip_selected_tags($str,$tags);
?>

<?php
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：

<link rel='stylesheet' id='style-css'  href='/css/css.php' type='text/css' media='all' />

<?php
/*
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();

/**
 * 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
<?php
$pagejs[] = $tplurl."js/jump.js";
$jsfile=parse_script($pagejs,"./template/default/js/",".");
?>
<script type="text/javascript" src="<?=$jsfile?>"></script>
css调用
<?php
$pagecss[] = $tplurl."style/index_top.css";
$pagecss[] = $tplurl."style/index.css";
$cssfile=parse_css($pagecss,"./template/default/style/",".");
?>
<link rel="stylesheet" type="text/css" href="<?=$cssfile?>" />