Capturing passed modal value and converting it into php query parameter - php

Question

EDIT: May I ask for assistance regarding this code?
This is my modal. My input text receives a value of AAA-123-0001
This script is being included into the main page via include()
<input type="hidden" class="decid" id="id" name="id">
<?php include 'includes/services_payslip_list_payslip-selection.php'; ?>
This is my services_payslip_list_payslip-selection.php
<script>
$(document).ready(function() {
$("#id").change(function() {
var id = $(this).val();
if(id != "") {
$.ajax({
url:"services_payslip_list-payslip-table.php",
data:{id:id},
type:'POST',
success:function(response) {
var resp = $.trim(response);
$("#id").html(resp);
}
});
}
});
</script>
This is my services_payslip_list-payslip-table.php
<table id="example2" class="table table-bordered">
<thead>
<th>Schedule Date</th>
<th>Schedule Name</th>
<th>Recorded In</th>
<th>Recorded Out</th>
<th>Day Count</th>
<th>Day Value</th>
<th>N.D. Value</th>
<th>Leave Count</th>
<th>R.H. Count</th>
<th>R.H. Value</th>
</thead>
<tbody>
<?php
include 'includes/session.php';
if(isset($_POST['id'])) {
$id=$_POST['id']
}
$user = $user['fingerscanno'];
$sql = "SELECT fingerscanno, scheduledate, schedulename, recordin, recordout, noofdays, rate, nightdifferential, leaveday, regularholiday, specialholiday, referenceno
FROM payrollrecords WHERE fingerscanno='$user' and referenceno='$id'";
$query = sqlsrv_query($conn, $sql, array(), array("Scrollable" => SQLSRV_CURSOR_KEYSET));
while($row = sqlsrv_fetch_array($query, SQLSRV_FETCH_ASSOC)){
echo "
<tr>
<td>".$row['scheduledate']."</td>
<td>".$row['schedulename']."</td>
<td>".$row['recordin']."</td>
<td>".$row['recordout']."</td>
<td>".$row['noofdays']."</td>
<td>".$row['rate']."</td>
<td>".$row['nightdifferential']."</td>
<td>".$row['leaveday']."</td>
<td>".$row['regularholiday']."</td>
<td>".$row['specialholiday']."</td>
</tr>
";
}
?>
</tbody>
</table>
What seems to be the problem here? services_payslip_list_payslip-selection.php won't load into the modal.