Data table not working - php

Question

I have a table which I populate using data from MySQL via PHP.
<table id="tab" class="table">
<thead>
<tr>
<th>Heading</th>
</tr>
</thead>
<tbody>
<?php
session_start();
$id=$_SESSION['id'];
$val=$_SESSION['val'];
if($val=="1")
{
$result = $obj->getAllVals();
}
else
{
$result = $obj->getVal($id);
}
foreach($result as $row) { ?>
<tr style="cursor:pointer" onclick="gp('<?php echo $row['name']; ?>')">
<td> <?php echo $row['name']; ?> </td> </tr>
<?php } ?>
</tbody>
</table>
I'm not able to see my data as a datatable. Here is how I'm calling Data tables:
$(document).ready( function () {
$('#tab').dataTable();
});
Here are the scripts I'm using:
<script src="static/js/jquery.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript" src="static/lib/jquery.dataTables/js/jquery.dataTables.min.js"></script>
<script type="text/javascript" src="static/lib/jquery.dataTables/js/DT_bootstrap.js"></script>
<script type="text/javascript" src="static/lib/jquery.dataTables/js/datatables.responsive.js"></script>
<script src="static/js/jquery-ui.js" type="text/javascript" charset="utf-8"></script>

Answer 1

Are you sur the variable $result is populated?
What if you replace this:
foreach($result as $row) { ?>
<tr style="cursor:pointer" onclick="gp('<?php echo $row['name']; ?>')">
<td> <?php echo $row['name']; ?> </td> </tr>
<?php } ?>
By this :
foreach($result as $row) { ?>
<tr><td>Test</td></tr>
<?php } ?>
Does it shows a lot of "Test" cells?
If yes, then there is something wrong with getting the infos out of the "$row" variable.
If not, then there is something wrong with either the foreach loop, or with the "$obj->" calls.

Answer 2

You have at least one error, that is outside the
<?php ?>
body:
<tr style="cursor:pointer" onclick="gp(\''.$row['name'].'\')">
=>
<tr style="cursor:pointer" onclick="gp('<?php echo $row['name']; ?>')">

Answer 3

session start methode should be in first line of php file
kindly write
<?php
session_start();
?>

Answer 4

Try to use a while loop, instead a foreach.
while($row = mysql_fetch_array($result)) {
echo "<tr style='cursor:pointer' onclick='gp('".$row['name']."')'>
<td> ".$row['name']." </td>
</tr>";
}

Answer 5

I assume that there are rows in the table and as you say "The console is not throwing up any data table related errors"
in that case you may want to check the non-related errors.
if there is an error it may stop all further script execution.
you should check if this line $('#tab').dataTable(); is executed at all (you can just replace it with alert and see)
and if this is the case the problem will be solved by correcting thous errors