刪除有文件的目錄

<?php
  $dirname = 'text';
  deleteDir($dirname);
  function deleteDir($dirname){
    if(file_exists($dirname)){
      if(is_file($dirname)){
        echo '這是文件不用刪除';
        exit;
      }else{
        $resorce = opendir($dirname);
        while($file = readdir($resorce)){
         $file_path = $dirname .'/' .$file;
          if($file!='.' && $file !='..'){
            if(is_dir($file_path)){
             deleteDir($file_path);
            }else{
             unlink($file_path);
             echo "刪除文件{$file_path}成功".'<br/>';
             }
          }
        }

      }
        closedir($resorce);
        rmdir($dirname);
        echo "刪除目錄{$dirname}".'<br/>';
    }
  }