php 获取目录下所有文件实现代码

php教程 获取目录下所有文件实现代码
class a{
private $img_dir;
private $img_path;
private $face_files = array();
private $allow_extension = array();

private function get_face_files()
{
$files = array();
if(is_dir($this->img_dir))
{
if ($dh = opendir($this->img_dir))
{
while (($file = readdir($dh)) !== false)
{
if($file == '.') continue;
if($file == '..') continue;
$fileinfo = explode('.', (basename($file)));
if(in_array($fileinfo[1], $this->allow_extension))
{
$files[] = array(
'filename' => $fileinfo[0],
'extension' => $fileinfo[1],
);
}
}
closedir($dh);
}
}
return $files;
}
}