checkboxes and mysql

[harmor19]

I have been searching but I don't understabd how exactly I would do it.

I am putting the checboxes in a while loop so it appears beside each entry.
How do I go about deleting the entries where checkbox is ticked?

Here's the checkbox field,

<input type="checkbox" name="tests[]" value="$testimnonial[id]" />

I found a good tutorial on checkboxes and php.
I had to edit a little but I got it.

PHP Code:

$tests = $_POST['testimonials'];
   $n        = count($tests);
   $i        = 0;

   while ($i < $n)
   {
      $db->query_write("DELETE FROM " . TABLE_PREFIX . "testimonials WHERE testid='$tests[$i]' ");
      $i++;
   }