Increament id of td by Loop and getting id in function - php

Question

I'm populating a table with database data, i want to get value of td that is row1, to perform action in PHP function, I dont know how to do this,
<?php
$sql = "SELECT DISTINCT name,c_no,email,speciality FROM doctor_temp";
$result = mysqli_query($con,$sql);
while ($row = mysqli_fetch_array($result))
{?>
<?php $count=1;
$count++;?>
<tr>
<td><?php echo $row[0];?></td>
<td id=<?php echo $count;?>><?php echo $row[1];?></td>
<td><?php echo $row[2];?></td>
<td><?php echo $row[3];?></td>
<td><button type="button" class="btn btn-success" onclick="insert()">register</button></td>
</tr>
<?php } ?>
</tbody>
</table>
</div>
<script type="text/javascript">
function insert()
{
var a = document.getElementById($count).innerHTML;
alert(a)
}
</script>
</body>

Answer 1

Watch out! Your code is wrong because you need to put the ID number instead of the PHP variable. If you want to use count you have to put it inside a PHP tag and echo it, but you are mixing the JS with the PHP code.
getElementById(<?php echo $count; ?>).innerHTML
Just look at the console log when you are debugging, please, that makes things a lot easier and it saves you from asking questions that you can answer yourself.
I don’t recommend that you preprocess JS however, that is an extremely bad practise for any programming language.