<?php
    class Connect{
        private $host = "localhost:9080";
        private $user = "root";
        private $password = "test123";
        private $dbName = "jobber";

        function __construct(){

        }


        function connect(){
            try{
                $connection = new PDO('mysql:host=localhost;dbname=jobber;charset=utf8mb4','root','test123');
            }catch(PDOException $ex){
                echo $ex;
            }

            return $connection;
        }
    }
?>

<?php
    require_once dirname(__FILE__) . '/connect.php';
    $connection = new connect();
    $connect = $connection->connect();
?>

Fatal error: Uncaught Error: Call to undefined function mysql_connect() in C:xampphtdocsJobberapiconnect.php:9 Stack trace: #0 C:xampphtdocsJobberapitesten.php(4): Connect->__construct() #1 {main} thrown in C:xampphtdocsJobberapiconnect.php on line 9