<?php
  session_start();
  $host = "localhost";
  $user = "root";
  $pass = '';
  $db = "xxxxxx";
  try {
  $conn = new PDO("mysql:host=$host;dbname=$db", $user, $pass);
  $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
  }
  catch(PDOException $e)
  {
  echo "Connection failed: " . $e->getMessage();
  }
  ?>