<?php
define( 'DB_HOST', 'localhost' );
define( 'DB_PORT', '3306' );
define( 'DB_NAME', 'db' );
define( 'DB_USER', 'user' );
define( 'DB_PASS', 'password' );

try
{
        $conn_str = sprintf( 'mysql:host=%s;dbname=%s', DB_HOST, DB_NAME );
        $PDO = new PDO( $conn_str, DB_USER, DB_PASS );
}
catch ( PDOException $e )
{
        print "Error!: " . $e->getMessage() . "<br/>";
        die();
}