<?php
try {
	$db_host = "";
	$db_name = "";
	$db_username = "";
	$db_password = "";
    $conn = new PDO("mysql:host=$db_host;dbname=$db_name", $db_username, $db_password);
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
	global $conn;
} catch(PDOException $e) {
    echo 'ERROR: ' . $e->getMessage();
} ?>