Online PHP editor | output for YOBGX

<?php session_start(); $mysqli = new mysqli("localhost", "my_user", "my_password", "world"); /* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); } $city = "Amersfoort"; /* create a prepared statement */ if ($stmt = $mysqli->prepare("SELECT * FROM `users` WHERE username=? AND password=?")) { /* bind parameters for markers */ $stmt->bind_param("ss", $username,$password); /* execute query */ $stmt->execute(); /* bind result variables */ $stmt->bind_result($result); /* fetch value */ $stmt->fetch(); if( count($result) > 0 ){ $_SESSION['authentificated'] = true; $_SESSION['username'] = $username; } /* close statement */ $stmt->close(); } /* close connection */ $mysqli->close(); ?>