<?php

$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = '12345';
$dbname = 'db_userdata';

// Create DSN
$dsn = "mysql:host=$dbhost;dbname=$dbname";

try{
    $pdo = new PDO($dsn, $dbuser, $dbpass);
} catch(PDOException $e){
    die('Failed to connect to database'.$e->getMessage());
}

?>