NestedFor dan Array2d

<?php
    $siswa = array(array("123456789", "Tony", "MIF1"), array("234567890", "Thor", "MIF2"), array("345678901", "Bruce", "MIF3"));

    echo '<table border="1">
            <tr>
                <th>NIS</th>
                <th>NAMA</th>
                <th>KELAS</th>
            </tr>';

    for ($i=0; $i < 3 ; $i++) {
        echo '<tr>';
        for ($j=0; $j < 3 ; $j++) {
            echo '<td>' .$siswa [$i][$j]. '</td>';
        }
        echo '<tr>';
    }
    echo '</table>';
?>