Alexander Pushkarev

function validate($value, $reg) {
    // ... тут валидация

    return true;
}

$filterKey = array(
    array(
        'name'      => 'code',
        'validate'  => '/^\d+$/'
    ),
    array(
        'name'      => 'title',
        'validate'  => '/(.+?)/'
    ),
    array(
        'name'      => 'color',
        'validate'  => '/^#?([a-f0-9]{6}|[a-f0-9]{3})$/'
    )
);

$query = array();

foreach ($filterKey as $filter) {
    if (validate($_GET[$filter['name']], $filter['validate'])) {
        $query[] = array( $filter['name'] => $_GET[$filter['name']]);
    }
}

$("div").animate({"backgroundColor" : "black"}, {"duration":400, "queue": false});
$("div").animate({"height" : "0"}, {"duration":400, "queue": false});