Código PHP:
Ver original// Script
$votenew = ($account_extra["vote_points"] - $shop1["vote_points"]);
$creditnew = ($account_extra["credit-store"] - $shop1["credit-store"]);
$sql = "UPDATE $server_db.users SET users.vote_points = '".$votenew."', users.credit-store = '".$creditnew."' WHERE users.id = '".$id."' AND users.avatar = '".$avatar."' AND users.blizz = '".$blizz."' AND users.class = '".$class."' AND users.firstName = '".$firstName."' AND users.lastName = '".$lastName."' AND users.character = '".$character."'";
echo $sql;
algo así, por cierto si no has abierto, un enlace previo por mysql connect, te falta el parametro de conexion a la bd