POSTing a a value from inside a table, using hidden field and submitting using JavaScript

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My question is related to form handling after a set of rows are retrieved from MySQL in PHP.

I can display rows in a table, and I need to jump to another PHP file when I click one of the columns.

When I use GET it is easy. For example, when I click a row at a cell showing 'title', I pass 'recID' as a key for the <a href ...>, I just do the following:

<td>
<a href='showDetails.php?key=<?php echo $row['recID']?>'><?php echo $row['title']?></a>
</td>

But I am writing this message because I am trying to send the recID using POST and using <a href..>, not <input name="submit" type="submit" />.

I found several posts in Google suggesting I use a form with hidden value, and use JavaScript to submit.

I have created a sample, but whichever row I click, I get the same recID on my POST value. Each row has unique recID, and when I click different rows, I want to see a corresponding, different recID.

Here is a part of my code:

<td>

<form method="post" name="form1" action="showDetails.php">

<input type="hidden" name="recNo" value="<?php echo $row["recNo"]; ?>">

<a href="javascript: void(0)"
onclick="document.forms[0].submit(); return false;">...</a>
</form>

</td>

The ... has PHP echo for 'title'.

The form submits fine, and when I check
print_r($_POST);
in showDetails.php file, I only get the recID belonging to the first record, whichever row I click.

Please note that the rows are inside a table.

<table>

<?php
while ($row = $stmh->fetch(PDO::FETCH_ASSOC)) { ?>

<tr>
<td>
... my sample code goes here....
</td>
</tr>
<?php
}?>
</table>


Sorry for a long winded post and my apology if it is not the right forum.

Thank you.