if (isset($_POST['_id'])) {
    $sql = "SELECT * FROM game WHERE gameId=:gameId AND turn=:turn";
    $stmt = sqlexec($sql,array($_POST['_id'],$_POST['x_o']),$conn,array(':gameId',':turn'));
    if ($row=$stmt->fetch(PDO::FETCH_ASSOC)) {
        echo $row['turn'].'|'.$row['move'];
    }
}