php简单浏览目录内容

<?php$dir = dirname(__FILE__);$open_dir = opendir($dir);echo "<table border=1 borderColor=red cellpadding=6>";echo "<tr><th>文件名</th><th>大小</th><th>类型</th><th>修改日期</th></tr>";while ($file = readdir($open_dir)) {	if ($file!= "." && $file != "..") {		echo "<tr><td>" . $file . "</td>";		echo "<td>" . filesize($file) . "</td>";		echo "<td>" . filetype($file) . "</td>";		echo "<td>" . filemtime($file) . "</td></tr>";	}}echo "</table>";?>