Basic PDO Connection

<?php

    $DB_HOST  = 'localhost';
    $DB_LOGIN = 'root';
    $DB_PASS  = 'YOUR_PASSWORD';
    $DB_NAME  = 'DATABASE_NAME';

    $dsn = '';

    try{

        $dsn = 'mysql:host='.$DB_HOST.';dbname='.$DB_NAME;

        $pdo = new PDO($dsn, $DB_LOGIN,$DB_PASS);

        $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

        echo "Connected to ".$DB_NAME; //Comment out when connection established

    }catch(PDOException $e){

        die ('Connection Failed: '.$e->getMessage());

    }