<?php include 'conapps/dbcon.php'; //connect database $objConnect = mysqli_connect($servername,$username, $password, $dbname); // Check connection if ($objConnect->connect_error) { die("Connection failed: " . $objConnect->connect_error); } echo "Connected successfully"; /*try { $conn = new PDO("mysql:host=$servername;dbname=$dbname;charset=utf8", username=$username, password=$password); // set the PDO error mode to exception $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); //echo "Connected successfully"; } catch(PDOException $e) { echo "Connection failed: " . $e->getMessage(); }*/ $a=5; $b=4; echo "sum : " . $a + $b; ?>