<?php
session_start();
$dsn = 'mysql:dbname=trutime;host=127.0.0.1';
$user = 'root';
$password = '';
//create connection
//$conn=new PDO($dsn, $user, $password);
//check connection
try {
    $conn = new PDO($dsn, $user, $password);
} catch (PDOException $e) {
    echo 'Connection failed: ' . $e->getMessage();
}
//session validation
$isUserLoggedIn = false;
if(
		isset($_SESSION['usr']) &&
		isset($_SESSION['pwd']) &&
		!empty($_SESSION['usr']) &&
		!empty($_SESSION['pwd'])) {
	$isUserLoggedIn = true;
}

?>