coopster - 7:11 pm on Oct 14, 2012 (gmt 0)
Have you dumped out that information yet? You are going to see that the "sent" index is an array and you will need to use it accordingly. See this line here ...
$requestid = ($_POST['sent']);
... for more information. Also, NEVER use user-supplied data in a MySQL query unless you have determined it contains exactly what you expect and nothing more. And at the very least you should use the mysql_real_escape_string() method on that data.
More reading here: