public static function deleteMsg($msgId, $userId)
 {
     $connection = new DbConnect();
     $pdo = $connection->connect();
     $ownerQuery = "SELECT id, sender, receiver, isDeleted_sender, isDeleted_receiver FROM direct_message WHERE id = :msgId";
     $stmt = $pdo->prepare($ownerQuery);
     $stmt->bindParam(':msgId', $msgId);
     $stmt->setFetchMode(PDO::FETCH_OBJ);
     $stmt->execute();
     $ownerCheck = $stmt->fetch();
     if ($ownerCheck->sender == $userId) {
         DirectMessages::deleteMsgSender($msgId);
     }
     if ($ownerCheck->receiver == $userId) {
         DirectMessages::deleteMsgReceiver($msgId);
     }
     DirectMessages::removeMsgCheck($ownerCheck->id, $ownerCheck->isDeleted_sender, $ownerCheck->isDeleted_receiver);
     return $stmt->errorInfo();
 }