db.php

<?php
    $db_host = "localhost";
    $db_name = "test3";
    $db_user = "cargoentry";
    $db_pass = "1234567890";

    try{
        $db_con = new PDO("mysql:host={$db_host};dbname={$db_name}",$db_user,$db_pass);
        $db_con->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    }
    catch(PDOException $e){
        echo $e->getMessage();
    }
   ?>