markup.html

<form>
    <table>
        <tr>
            <th>First name</th>
            <th>Last name</th>
        </tr>
        <tr>
            <td><input type="text" name="people[][firstname]" value="Jeff" /></td>
            <td><input type="text" name="people[][surname]" value="Stelling" /></td>
        </tr>
        <tr>
            <td><input type="text" name="people[][firstname]" value="Chris" /></td>
            <td><input type="text" name="people[][surname]" value="Kamara" /></td>
        </tr>
        <tr>
            <td><input type="text" name="people[][firstname]" value="Alex" /></td>
            <td><input type="text" name="people[][surname]" value="Hammond" /></td>
        </tr>
        <tr>
            <td><input type="text" name="people[][firstname]" value="Jim" /></td>
            <td><input type="text" name="people[][surname]" value="White" /></td>
        </tr>
        <tr>
            <td><input type="text" name="people[][firstname]" value="Natalie" /></td>
            <td><input type="text" name="people[][surname]" value="Sawyer" /></td>
        </tr>
    </table>
    <input type="submit" value="OK" />
</form>