PHP/File Directory/chgrp

Using the chown() and chgrp() Functions

 
<?php
     $dr = @opendir("/tmp/");
     if(!$dr) {
          echo "Error, couldn"t open /tmp/!";
          exit;
     }
     while(($filename = readdir($dr)) !== false) {
          chown($filename, "php");
          chgrp($filename, "phpgroup");
     }
          closedir($dr);
?>