How to convert string to variable for use in server code - php

Question

I want convert $RowNumber from string to a variable, for use in while, do is that possible?!how to do it?
$row1 = mysqli_query($Database,"SELECT * FROM Table1 ORDER BY ID");
$row2 = mysqli_query($Database,"SELECT * FROM Table2 ORDER BY ID");
// Others Rows code
for ($num = 1; $num <= 6; $num++)
{
$RowNumber = "row" . $num; // Save RowNumber for use in while
echo '<tr>';
// when it's used it not work becuse it's just a string only and
// i want convert it to variable to use in while
while($row = mysqli_fetch_array($RowNumber))
{
echo '<td>
<div class="Image_DIV" id="'; echo $row['DIV_ID']; echo '">
<table>
<tr><td class="Image"><img class="ImageOfDiv"
src="3DGallery/Chosen/Small/'; echo $row['src']; echo '"/></td></tr>
<tr>
<td class="ImageDescribe">'; echo $row['describe']; echo '</td></tr></table>
</div>
</td>';
}
echo '</tr><tr>';
}

Answer 1

Try ${$RowNumber} instead of $RowNumber for your purpose, If you need more info you can find it here. But as Mr. raina77ow has commented arrays are a good option.

Answer 2

If Table1 and Table2 have the same columns then you should UNION them together in your SQL then work on a single results set.
$results = mysqli_query($Database, "SELECT ID, DIV_ID, src, describe FROM `Table1` UNION SELECT ID, DIV_ID, src, describe FROM `Table2` ORDER BY ID");
echo '<tr>';
$x = 0;
while($row = mysqli_fetch_array($results))
{
echo '<td>';
echo $row['DIV_ID'];
echo $row['src'];
echo $row['describe'];
echo '</td>';
if( ++$x % 3 == 0 ) {
echo '</tr><tr>';
}
}
echo '</tr>';

Answer 3

Try this:
$rows[] = mysqli_query($Database,"SELECT * FROM Table1 ORDER BY ID");
$rows[] = mysqli_query($Database,"SELECT * FROM Table2 ORDER BY ID");
// Others Rows code
foreach ($rows as $current)
{
echo '<tr>';
// loop the query
while($row = mysqli_fetch_array($current))
{
echo '<td>
<div class="Image_DIV" id="'; echo $row['DIV_ID']; echo '">
<table>
<tr><td class="Image"><img class="ImageOfDiv"
src="3DGallery/Chosen/Small/'; echo $row['src']; echo '"/></td></tr>
<tr>
<td class="ImageDescribe">'; echo $row['describe']; echo '</td></tr></table>
</div>
</td>';
}
echo '</tr><tr>';
}
You cant assign variables like that without using php Eval: http://www.php.net/eval, but that is realy bad practise!
or using ${$var} syntax. But arrays is probably easier to work with.