<?php

session_start();
if (isset($_SESSION['username'])) {
    header("Location: index.php");
}
$username = $_SESSION['username'];
$firstName = $_POST['firstName'];
$lastName = $_POST['lastName'];
$street = $_POST['street'];
$zipCode = $_POST['zipCode'];
$phoneNumber = $_POST['phoneNumber'];
$email = $_POST['email'];
$password = $_POST['password'];
$servername = "localhost";
$username = "";
$password = "";
$db = "test";
// Create connection
$conn = new mysqli($servername, $username, $password, $db);
// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
} else {
    $sql = "UPDATE testtable SET column1=value, column2=value2 WHERE email = {$username}";
    //change to watever the table is with user information
    $result = $conn->execute($sql);
}
$conn->close();