deleting multiple comments

Hi, i wanted to make a multiple comments deletion solution..
but i need a bit help cause i didnt manage to do it..

i know this:
to del a comment you need to use delete-comment which is in do_command.php.

now it goes like this:

$gallery->album->deleteComment($index, $comment_index);
 $gallery->album->save();
 dismissAndReload();

and i've tried to send multiple comments:

while ($array) {
$gallery->album->deleteComment($index, $array[num]);
 $gallery->album->save();
};
dismissAndReload();

but it didnt work, can anyone try and help me? thanks!