Quick and simple database connection

config.php

<?php

  include('db.class.php');
	
	$database = new Database();

	$database->dbUrl 	= 	'localhost'; //URL of database
	$database->dbUser 	= 	'root'; // Username
	$database->dbPass 	= 	''; // Password
	$database->dbName	= 	'test_db'; // Name of database you wish to connect to

	$database->connect();

db.class.php

<?php 
  class Database {

		public $dbUrl;	
		public $dbUser;
		public $dbPass;
		public $dbName;
		public $dbTable;

		public function connect() {
			$con = mysql_connect( $this->dbUrl, $this->dbUser, $this->dbPass );

			if( !$con ) die( "Could not connect: " . mysql_error() );

			mysql_select_db( $this->dbName ) or die( "Could not connect to database: " + mysql_error() );
		}
	}