AZZ is a dickhead

<?php

// $sql = "INSERT INTO `users` (`id`, `account`, `password`, `created`) VALUES (NULL, \'hoi\', \'hoi\', CURRENT_TIMESTAMP)";
// $sql = SELECT * FROM `users` WHERE `account` = "hoi" AND `password` = "hoi";
// $sql = SELECT * FROM `users` WHERE `account` = "$_POST["username"]" AND `password` = "$_POST["password"]";

// $render = " ";
// $servername = "localhost";
// $username = "root";
// $password = "";
// $dbname = "project1_db";


// $query = "SELECT * FROM `user` WHERE username='$username' and password='$password'";

//     // Create connection
//     $conn = new mysqli($servername, $username, $password, $dbname);
//     // Check connection
//     if (!$conn) {
//         die("Connection failed: " . mysqli_connect_error());
//     }

//     $sql = "SELECT `id`, `account`, `password`, `created` FROM users";
//     $result =mysqli_query($conn, $sql);

//     if (mysqli_num_rows($result) > 0) {
//         // output data of each row
//         while($row = mysqli_fetch_assoc($result)) {
//             $render = "<dr>id: " . $row["id"]. " Username: " . $row["account"]. " Password: " . $row["password"]. " Timestamp: " .$row["created"]. "<br>";
//         }
//     } else {
//         $render = "0 results";
//     }


function logon() {

    $result = " ";

    if (isset($_POST["logoff"])) {
        //unset($_SESSION);
        //$_SESSION = array();
        //session_destroy();
        session_unset();
    }
    if (isset($_POST['logon']) && $_POST['username']== "UR USERNAME" && $_POST['Password']== "UR PASSWORD")
    {
        $_SESSION['logon'] = true;

    }

    if (isset($_SESSION['logon']) == true) {
        $form  = '<form action="" method="post">';
        $form .= '<div class="modal-inner">';
        $form .= '<input type="submit" name="logoff" value="logoff">';
        $form .= '</div></form>';
    }
    else {
        $form  = '<form  action="" method="post">';
        $form .= '<table><tbody>';
        $form .= '<h2>Login</h2><br>';
        $form .= '<tr><td><input type="text" name="username" placeholder="Username"><br></td></tr>';
        $form .= '<tr><td><input type="password" name="Password" placeholder="Password"><br></td></tr>';
        $form .= '<tr>';
        $form .= '<td><input type="submit" name="logon" value="Login"></td>';
        $form .= '</tr></table></tbody></form>';
    }
    return $result . $form;
}


?>