PHP简单文件管理系统

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<?php$ml = './';//超全局变量  信息头信息print_r($_SERVER);exit;$url = $_SERVER['REQUEST_URI']; if (isset($_GET['dir'])) {    $ml = $ml . '/' . $_GET['dir'];}else{    $url = $url . '?dir=.';}$zy = opendir($ml);if ($zy === false) {echo '打开出错';exit;}$list = array();while (($wb = readdir($zy)) !== false) {$list[] = $wb;}//print_r($list);closedir($zy);?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="zh-CN"><head><title>文件管理系统</title><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><meta name="description" content="开拓者博客 http://150643.com" /><style>td{border:1px solid red;}</style><h1>文件管理系统</h1></head>    <body>    <table>     <?php foreach ($list as $key => $value) {    echo '<tr>';    echo '<td>',$key,'</td>';    echo '<td>',$value,'</td>';    echo '<td>';                if (is_dir($ml . './' . $value)) {                    echo '<a href="',$url,'/',$value,'">浏览</a>';                }else{                    echo '<a href="./',@$_GET['dir'],'/',$value,'">查看</a>';                }             echo  '</td>';    echo '</tr>';    }    ?>    </table>        </body></html>

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