How to disable looping inside do while loop in php? - php

Question

I used php to generate rows of html table. Here is my code:
<?php $cols=mysql_num_rows($grds); ?>
<tr>
<td></td>
<?php do{ ?>
<td rowspan="<?php echo $cols; ?>" align="center">Internal<br />Grades</td>
<td colspan="2"> <?php echo strtoupper($row_grds['grade_name']);?></td>
<td align="center"><?php echo strtoupper($row_grds['igrade']);?></td>
</tr>
<?php } while ($row_grds=mysql_fetch_assoc($grds));?>
The html source generated by the above code is:
<tr>
<td></td>
<td rowspan="2" align="center">Internal<br />Grades</td>
<td colspan="2"> RHYMES</td>
<td align="center">B</td>
</tr>
<td rowspan="2" align="center">Internal<br />Grades</td>//I don't want this.
<td colspan="2"> CONVERSATION</td>
<td align="center">A</td>
</tr>
My expected output is:
<tr>
<td> </td>
<td rowspan="2"> Internal<br /> Grade</td>
<td colspan="2"> RHYMES</td>
<td align="center">B</td>
</tr>
<tr>
<td> </td>
<td colspan="2"> CONVERSATION</td>
<td align="center">A</td>
</tr>

Answer 1

<?php $i=0; while ($row_grds=mysql_fetch_assoc($grds)){ ?>
<tr>
<td></td>
<?php if($i==0): ?>
<td rowspan="<?php echo $cols; ?>" align="center">Internal<br />Grades</td>
<?php endif; ?>
<td colspan="2"> <?php echo strtoupper($row_grds['grade_name']);?></td>
<td align="center"><?php echo strtoupper($row_grds['igrade']);?></td>
</tr>
<?php $i++; } ?>