Atur tabel secara berdampingan alih-alih lurus ke bawah saat melakukan while-loop

Bungkus hasilnya di tabel lain.

echo "<table>";
$count = 0;
$num_columns = 2;  // or 3
while ($rc = mysql_fetch_array($results_course)) {
    if ($count++ % $num_columns == 0) {
        echo "<tr>";
    }
    echo "<td>";
    // previous table code here
    echo "</td>";
    if ($count % $num_columns == 0) {
      echo "</tr>";
    }
}
if ($count % $num_columns > 0) {
  echo "</tr>";
}
echo "</table>";