Removing the last element in a do-while - php

Question

How can I remove the last element in a do-while generated table?
In my case the last tr/td where div.dividing_line is stored.
The code:
$ArrayLength = 6;
$i = 1;
do {
echo '
<tr>
<td valign="middle">Data_Position</td>
<td valign="middle">Data_Item</td>
<td valign="middle">Data_Pieces</td>
<td valign="middle">Data_Price</td>
</tr>
<tr>
<td colspan="4"><div class="dividing_line"></div></td>
</tr>
';
++$i;
} while ($i < $ArrayLength+1);
For example: If I have an array with 6 items, normally the do-while will do the job, so finally there will be 6 tr's with data and 6 tr's with the dividing_line.
What I need is 6 tr's of data and 5 tr's of dividing_line. Is that possible?

Answer 1

Try this-
$ArrayLength = 6;
$i = 1;
do {
echo '
<tr>
<td valign="middle">Data_Position</td>
<td valign="middle">Data_Item</td>
<td valign="middle">Data_Pieces</td>
<td valign="middle">Data_Price</td>
</tr>';
if($i != $ArrayLength) {
echo '<tr>
<td colspan="4"><div class="dividing_line"></div></td>
</tr>
';
}
++$i;
} while ($i < $ArrayLength+1);

Answer 2

Use an extra if Statement to check whether you are at the last element:
if (%i < $ArrayLength) { echo '<tr>...dividing_line</tr>'; }

Answer 3

$ArrayLength = 6;
$i = 1;
do {
echo '
<tr>
<td valign="middle">Data_Position</td>
<td valign="middle">Data_Item</td>
<td valign="middle">Data_Pieces</td>
<td valign="middle">Data_Price</td>
</tr>';
if($i < $ArrayLength)
{
echo '
<tr>
<td colspan="4"><div class="dividing_line"></div></td>
</tr>';
}
++$i;
} while ($i < $ArrayLength+1);

Answer 4

I think your approach just needs an additional step.
It could be something like this:
$data = null;
foreach ($rows as $row) {
$data[] = "<tr><td valign=\"middle\">Data_Position</td><td valign=\"middle\">Data_Item</td><td valign=\"middle\">Data_Pieces</td><td valign=\"middle\">Data_Price</td></tr>";
}
print implode("<tr><td colspan=\"4\"><div class=\"dividing_line\"></div></td></tr>", $data);
This way, you could accomplish what you want without any more logic. Of course, it can be changed or re-design, but I think this way will provide you with a simple yet elegan solution to your problem.
Hope it helps :P