<?php error_reporting(E_ALL ^ E_DEPRECATED); include "lib/connect.php"; ob_start(); session_start(); if (isset($_POST["submit"])) { $Username = $_POST["Username"]; $Password = $_POST["Password"]; $database = new DB_SQL(); if (mysql_num_rows($database->login($Username, $Password)) > 0) { $row = mysql_fetch_assoc($database->login($Username, $Password)); if (password_verify($Password, $row['Password'])) { echo ' You are now logged in'; $_SESSION["user"] = ['username' => $row['Username']]; header("Location: index.php"); } else { echo "Wrong username and password"; } } else { echo "User does not exist"; } } ?> <h2>Login</h2> <br> <br> <form action ="" method="POST">