[PHP4] Checkboxes and POST

hi, i was wondering how PHP4 deals with the following: <?php echo" <form method=post action=add.php> <input type=checkbox name=id value="abc">ABC <input type=checkbox name=id value="daf">DAF <input type=checkbox name=id value="zwg">ZWG <input type=submit value=Submit> </form>"; ?> if i check all three boxes, i end up getting only "ZWG" in add.php: <?php echo "id: $id"; ?> i understand that the easiest way around it is to name each checkbox a different name. however, my problem is that i have a lot of checkboxes generated automatically based on the results of a database query: while (odbc_fetch_into ($sql_result, &$array)) { $userid = $array[0]; $user_name = $array[1]; echo "<input type=checkbox name=$userid value=1>$user_name"; } the purpose of this is to let the current user add all the other users into his "group." but by doing the above, i have no effective way of finding out all the boxes/userid's that have been checked in the add.php file because i don't know the $userid's returned by the query... any suggestoins? comments? ideas? ---------------- remco chang bountyquest.com