[Iskib]

Hey still not working

Here is what I have full code..

require_once ('js/xajax_core/xajax.inc.php');
$xajax = new xajax();
$xajax->registerFunction("processForm");

function processForm($username)
{
    $ban_username_exists = sql_query("SELECT * FROM banned_usernames WHERE banned_username = '" .
        $username . "'");
    $result = sql_query(sprintf("SELECT * FROM users WHERE username = '%s'", $username));
    $banned = sql_query("SELECT * FROM usernames WHERE banned_username = '" . $username .
        "' LIKE '" . $username % "'");

    $objResponse = new xajaxResponse();
    if (empty($username)) {
        $objResponse->assign("result", "innerHTML",
            '<span style="color:#f00"><font size="2">Username Empty</font></span>');
    } elseif (!preg_match("/^[a-zA-Z\d\-_]+$/i", $username)) {
        $objResponse->assign("result", "innerHTML",
            '<span style="color:#f00"><font size="2">Invalid Username - Invalid Character or Space</font></span>');
    } elseif (mysql_num_rows($ban_username_exists) != '0') {
        $objResponse->assign("result", "innerHTML",
            '<span style="color:#f00"><font size="2">Invalid Username - Banned Username</font></span>');
    } elseif (mysql_fetch_row($banned)) {
        $objResponse->assign("result", "innerHTML",
            '<span style="color:#f00"><font size="2">Invalid Username - Banned Username</font></span>');
    } elseif (mysql_num_rows($result) > 0) {
        $objResponse->assign("result", "innerHTML",
            '<span style="color:#f00"><font size="2">Not Available</font></span>');
    } else {
        $objResponse->assign("result", "innerHTML",
            '<span style="color:#0c0"><font size="2">Available</font></span>');
    }
    return $objResponse;
}
$xajax->processRequest();

--------------- Added [DATE]1204900783[/DATE] at [TIME]1204900783[/TIME] ---------------

Other then the mySQL wildcard is there anyway of matching any username that would have part of a banned username? maybe a reg expression ?