PHP form 50: input text textarea checkbox

    <form method="post" action="process.php" >

        Firstname: <input type="text" name="firstname" />
        <br />

        Lastname: <input type="text" name="lastname" />
        <br />

        Description: <textarea name="description" rows="10" cols="50"></textarea>
        <br />

        Hobby: <input type="checkbox" name="hobby"

        <br />

        <hr />

        <input type="submit" name="submit" value="Submit" />

    </form>

    echo "<pre>";

    var_dump($_POST);