How do I delete a composite key?

Im trying to delete a composite key but cannot figure out the proper format. Would somebody tell me where im messing up? I have an url that is supposed to send the member id and game id to a delete query. And the delete query is supposed to grab the id's based on type. This is the link: <a href=\"member_commit.php?action=remove&type=Member&id={$record->Member_id}&gametype=Game&id={$record->Game_id}\">[GAME REMOVAL]</a></td>\n"; This is the code that recieves the link information: case "remove":

     switch ($_GET['type']) {
       case "Member":

if (!isset($_GET['do']) || $_GET['do'] != 1) { ?> <p align="center" style="color:#FF0000"> Are you sure you want to delete this <?php echo $_GET['type']; ?>?<br> <a href="<?php echo $_SERVER['REQUEST_URI']; ?>&do=1">yes</a> or <a href="member_view.php">Index</a> </p> <?php } else { if ($_GET['type'] == "Member") {

     // delete reference to member

$sql = "DELETE

          FROM xsm_membergames
          WHERE Member_id = '" . mysql_real_escape_string((int)$_GET['id']) . " .
    AND Game_id = '" . mysql_real_escape_string((int)$_GET['id']) . "'";

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