PHP 目录遍历

$dir=opendir('../0822') or die('打开失败');
while (false!==($file=readdir($dir))){
    if ($file!=","&&$file!=".."){
        print $file."<br>";
    }
}
closedir($dir);

$fileArr=scandir('../0822');
foreach ($fileArr as $file){
    if($file!="." && $file!=".."){
        echo "$file<br>";
    }
}