Dynamic Table with Rowspan PHP MySQL - php

Question

I have data like this:
ID
Parts Number
Parts Name
Std Qty
Stock
1
9810001
NGK-11O7GGH
12
10
1
9810010
NGK-1187GGH
12
10
2
3810001
OVH-78GH
14
16
2
4810010
OVH-86GS
14
16
So, each ID can have many parts variant, but user only set the stock for each ID not each variant.
Then, the table should be look like this:
Table with rowspan in excel
How i can dynamically make this table with PHP and MySQL?
So i can export to excel correctly.
My Code:
<?php
$pit = 10;
if($pit<=6){
$std = 'usix';
}elseif($pit>=7 || $pit<=10){
$std = 'sevten';
}if($pit>10){
$std = 'tenplus';
}
$inv = mysqli_query($conn, "SELECT i.*, s.$std AS std FROM inventory i, sparepart s WHERE id_dealer='1' AND s.id_parts=i.id_parts");
?>
<table class="table table-bordered">
<thead>
<th>No</th>
<th>Part Number</th>
<th>Deskripsi</th>
<th>Std Qty</th>
<th>Stock</th>
<th>Status</th>
</thead>
<tbody>
<?php
$i = 1;
while($d=mysqli_fetch_array($inv)){
$id = $d['id_parts'];
$varian = mysqli_query($conn, "SELECT * FROM varian WHERE id_parts='$id'");
$varian2 = mysqli_query($conn, "SELECT * FROM varian WHERE id_parts='$id'");
if($d['stock']>$d['std']){
$status = 'STOCK AMAN';
$class = 'text-success';
}elseif($d['stock']<$d['std']){
$status = 'STOCK LOW';
$class = 'text-danger';
}
echo "
<tr>
<td>$i</td>
<td style='padding:0'>";
while($x=mysqli_fetch_array($varian)){
echo "
<p class='mb-0 p-1'>$x[part_number]</p><hr>"
;
}
echo "</td><td style='padding:0'>";
while($y=mysqli_fetch_array($varian2)){
echo"
<p class='mb-0 p-1'>$y[nama_var]</p><hr>
";
}
echo
"</td>
<td>$d[std]</td>
<td>$d[stock]</td>
<td class='$class'>$status</td>
</tr>
";
$i++;
}
?>
</tbody>
</table>