php递归读取目录

 function recursion_dir($dir){
     $files = array();
     if($handle = opendir($dir)){
         while(($file = readdir($handle)) !== false){
             if($file != "." && $file != ".."){
                 if(is_dir($dir.'/'.$file)){
                     $files[iconv('gb2312','UTF-8',$file)] = recursion_dir($dir.'/'.$file);//对中文字符进行转码处理
                 }else{
                     $files[] = iconv('gb2312','UTF-8',$file);
                 }
             }
         }
     }else{
         return false;//打开文件失败
     }
     closedir($handle);//关闭句柄
     return $files;
 }

 $result = recursion_dir("W:/tmp/");
 echo '<pre/>';var_dump($result);exit;