First result from DB not showing when using while loop - php

Question

I am creating a php script to generate reports based on data stored in SQL, The query is here:
$sql = $adb->query("SELECT firstname, lastname, policynumber, isatype, isaname, startdate, unitvalue, numberofunits, currentamount, date, newunitvalue, newnumberofunits, newcurrentamount
FROM vtiger_isa, vtiger_addisa, vtiger_contactdetails
WHERE vtiger_isa.relatedclient = vtiger_addisa.addrelatedclient
AND vtiger_addisa.addrelatedclient = vtiger_contactdetails.contactid
AND vtiger_isa.relatedclient = $clientid
AND vtiger_isa.policynumber = $polnum
AND vtiger_addisa.addrelatedclient = $clientid
AND vtiger_addisa.newpolicynumber = $polnum
ORDER BY date ASC"
);
This performs fine as I have tested by using print_r($sql); and the results I want are there. Although when I am looping through the results they do not show. I have tested with different clientid's and the first result seems to missed out.
<b> New Figures:</b>
<table style="width:100%">
<tr>
<th>Date</th>
<th>Unit Value (P)</th>
<th>Number of Units</th>
<th>Total Value (£)</th>
</tr>
<?php
while ($sql->fetchInto($row)) {
?>
<tr>
<td><?php echo $row['date'];?></td>
<td><?php echo $row['newunitvalue'];?></td>
<td><?php echo $row['newnumberofunits'];?></td>
<td><?php echo $row['newcurrentamount'];?></td>
</tr>
<?php
}?>
</table>
</body>
</html>

Answer 1

I am not using the fetchInto() method. I using the following example:
<?php
$sql = $adb->query("...");
foreach($sql as $row){
?>
<tr>
<td><?php echo $row['date'];?></td>
<td><?php echo $row['newunitvalue'];?></td>
<td><?php echo $row['newnumberofunits'];?></td>
<td><?php echo $row['newcurrentamount'];?></td>
</tr>
<?php
}
?>
This is working every time. Try it out.