php - localhost:xxxx database connection change to TCP/IP?

We're currently hosting with LCN and have got a database which everything works fine, its basically an app that calls scripts on the host which login to a database using:

class DB{
private $dbHost     = "huya.uksrv.co.uk";
private $dbUsername = "uname";
private $dbPassword = "pword";
private $dbName     = "dbase";



public function __construct(){
    if(!isset($this->db)){
        // Connect to the database
        $conn = new mysqli($this->dbHost, $this->dbUsername, $this->dbPassword, $this->dbName, 2083);
        if($conn->connect_error){
            die("Failed to connect with MySQL: " . $conn->connect_error);
        }else{
            $this->db = $conn;
        }
    }
}

Getting the error: Failed to connect with MySQL: MySQL server has gone away

The problem is, were changing hosting to cPanel and their database is a little different to what I'm used to, it doesn't give a normal login page ie:

https://www.mydbadmin.co.uk/index.php its now: https://huya.uksrv.co.uk:2083/3rdparty/index.php

I'm able to login to the database through cPanel and create tables etc, but I can run a script which normally would work fine on the other server.

I believe the problem is something to do with localhost and sockets but ive no clue how these work at all.

The new Database details are:

Server: Localhost via UNIX socket
Server type: MariaDB
Server connection: SSL is not being used Documentation
Server version: 10.3.24-MariaDB-log-cll-lve - MariaDB Server
Protocol version: 10
User: xxxxxxxxxxxxxx@localhost
Server charset: cp1252 West European (latin1)

The old Database details are:

Server: database.lcn.com via TCP/IP
Server type: MySQL
Server connection: SSL is not being used Documentation
Server version: 5.7.29-log - MySQL Community Server (GPL)
Protocol version: 10
User: xxxxxxxxxx@xxxx.namesco.net
Server charset: UTF-8 Unicode (utf8)

How can I modify the class DB{} code to connect to the new database? Is it possible as I know the old server was TCP/IP.

Solution:

It was just:

private $dbHost     = "localhost";
private $dbUsername = "uname";
private $dbPassword = "pword";
private $dbName     = "dbase";

Thankyou to those who help in the chat :D