Ok this is basicly what i need i know how to pass the usename and password to a url like so

HTTP://mysite.com/login.php?username=username&password=password

and yes before someone complains this is not secure its a game site and its just used for keeping scores and im the only one who can see the url its nothing valuable anyway just game scores.

i know you have to use the get command something like this

<form action="logon.php" method=get">

<input name="username">

<input name="password">

<input type=submit value="Login">

</form>

here is my code for the login page:

// Initialize the session

session_start();

 // Check if the user is already logged in, if yes then redirect him to welcome page

if(isset($_SESSION["loggedin"]) && $_SESSION["loggedin"] === true){

    header("location: welcome.php");

    exit;

}

// Include config file

require_once "config.php";

// Define variables and initialize with empty values

$username = $password = "";

$username_err = $password_err = $login_err = "";

// Processing form data when form is submitted

if($_SERVER["REQUEST_METHOD"] == "POST"){

    // Check if username is empty

    if(empty(trim($_POST["username"]))){

        $username_err = "Please enter username.";

    } else{

        $username = trim($_POST["username"]);

    }

    // Check if password is empty

    if(empty(trim($_POST["password"]))){

        $password_err = "Please enter your password.";

    } else{

        $password = trim($_POST["password"]);

    }

    // Validate credentials

    if(empty($username_err) && empty($password_err)){

        // Prepare a select statement

        $sql = "SELECT id, username, password FROM users WHERE username = ?";

        if($stmt = mysqli_prepare($link, $sql)){

            // Bind variables to the prepared statement as parameters

            mysqli_stmt_bind_param($stmt, "s", $param_username);

            // Set parameters

            $param_username = $username;

            // Attempt to execute the prepared statement

            if(mysqli_stmt_execute($stmt)){

                // Store result

                mysqli_stmt_store_result($stmt);

                // Check if username exists, if yes then verify password

                if(mysqli_stmt_num_rows($stmt) == 1){                    

                    // Bind result variables

                    mysqli_stmt_bind_result($stmt, $id, $username, $hashed_password);

                    if(mysqli_stmt_fetch($stmt)){

                        if(password_verify($password, $hashed_password)){

                            // Password is correct, so start a new session

                            session_start();

                            // Store data in session variables

                            $_SESSION["loggedin"] = true;

                            $_SESSION["id"] = $id;

                            $_SESSION["username"] = $username;                            

                            // Redirect user to welcome page

                            header("location: welcome.php");

                        } else{

                            // Password is not valid, display a generic error message

                            $login_err = "Invalid username or password.";

                        }

                    }

                } else{

                    // Username doesn't exist, display a generic error message

                    $login_err = "Invalid username or password.";

                }

            } else{

                echo "Oops! Something went wrong. Please try again later.";

            }

            // Close statement

            mysqli_stmt_close($stmt);

        }

    }

    // Close connection

    mysqli_close($link);

}

?>

    Login

          body{ font: 14px sans-serif; }

        .wrapper{ width: 360px; padding: 20px; }

    Login

Please fill in your credentials to login.

        if(!empty($login_err)){

            echo '

';

        }        

        ?>

" method="post">

               Username

                 Password

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