如何在表格中显示4个TD，然后使用PHP创建新的表格行？

I am running a for loop grabbing data from a database and I want to create a new row every time I create 4 table datas, how could I go by doing this?

example:

<table>
<tr><td></td><td></td><td></td><td></td></tr>
<tr><td></td><td></td><td></td><td></td></tr>
<tr><td></td><td></td><td></td><td></td></tr>
</table>

Use Modular arithmetic: http://snook.ca/archives/php/the_modulo_oper

(not my site, I googled it for this gentleman.)

Something like that should do the trick.

$i = 0;
echo "<table><tr>";
while ($i < 50) {
  echo "<td></td>";
  if ($i % 4 == 0) {
    echo "</tr><tr>";
  }
  $i++;
}
echo "</tr></table>";

I let you handle as a homework the case where you end width a $i%4 == 0 so you end the code with </tr><tr></tr></table>

<table>
  <tr>

<?php

$i = 0;

foreach ($data as $item)
{

  echo "<td>$item</td>";

  $i++;

  if ($i % 4 == 0)
  {
    echo "</tr>
<tr>";
  }
}

// if total count of $data is not divisible with 4,
// we have to complete the last row with empty cells
for ($j = 0; $j < (4 - ($i % 4)); $j++)
{
  echo "<td> </td>";
}

?>
  </tr>

</table>