Not getting input from get_query_var

Changed the query and with the direction kaiser gave I got it working.

$area = $_GET['area'];
$persons = $_GET['persons'];
$query = new WP_Query( array( 'tag' => "$area+$persons" ) );

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)