21段救命PHP代码(4)

　5. PHP列出目录内容
        function list_files($dir)
        {
                if(is_dir($dir))
                {
                        if($handle = opendir($dir))
                        {
                                while(($file = readdir($handle)) !== false)
                                {
                                        if($file != "." && $file != ".." && $file != "Thumbs.db")
                                        {
                                                echo '<a target="_blank" href="'.$dir.$file.'">'.$file.'</a><br>'."\n";
                                        }