what are you asking is very simple if you understand just a little bit of html
you will have your table like this
PHP Code:
<table>
<tr>
<td>field1</td>
<td>field2</td>
<td>field3</td>
</tr>
<?php
for($j = 0; $j < $num_rows; $j++)
{
echo '<tr>';
for($i = 0; $i < 3; $i++)
echo '<td>'.$row[$j][$i].'</td>';
echo '</tr>';
}
?>
</table>
in you first row(<tr></tr>) you will have the head of the table
and in the double iteration you will build the row with all the fields(<td>>/td>)
to insert/modify a new field you just add/modify the specific <td></td> in the head and then alter the fors
PHP Code:
<table>
<tr>
<td>field1</td>
<td>field2</td>
<td>field3</td>
<td>newfield</td>
</tr>
<?php
for($j = 0; $j < $num_rows; $j++) // i a
{
echo '<tr>';
for($i = 0; $i < 4; $i++)
echo '<td>'.$row[$j][$i].'</td>';
echo '</tr>';
}
?>
</table>
i hope you will understand