Report (looping inside looping)

<?php
  ob_start();
  //include("koneksi.php");
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "javiscoi_task";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}


  session_start();
  $id_project = $_GET['id_project'];
?>
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
<title>Purchase Order</title>
<style>
body {
  background: rgb(204,204,204);
}
page {
  background: white;
  display: block;
  margin: 0 auto;
  margin-bottom: 0.5cm;
  box-shadow: 0 0 0.5cm rgba(0,0,0,0.5);
}
page[size="A4"] {
  width: 21cm;

}
page[size="A4"][layout="portrait"] {
  width: 29.7cm;
  height: 21cm;
}

@media print {
  body, page {
    margin: 0;
    box-shadow: 0;
  }
}
.button {
    background-color: #2a3f54;
    border: none;
    color: white;
    padding: 10px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 12px;
    margin: 4px 2px;
    cursor: pointer;
}

.button1 {border-radius: 6px;}
</style>
<script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
</head>
<body>

<!--<p> Test1: <button id="btnExport" onclick="javascript:xport.toXLS('testTable');"> Export to XLS</button> <em>&nbsp;&nbsp;&nbsp;Export the table to XLS with CSV fallback for IE & Edge</em>
  </p>-->
<p><button id="btnExport" onclick="javascript:xport.toCSV('testTable');" class="button button1"> Export to CSV</button></p>
<br>
<page size="A4">
<table id="testTable" rules="groups" frame="hsides" border="1" style="margin-left:4%;" class="table table-striped">
  <thead valign="top">
    <tbody valign="top">
    <tr>
      <th></th>
      <th colspan="7" style="font-weight: bold; padding: 5px;"> PT. Javis Teknologi Albarokah</th>
    </tr>
    <tr>
      <th></th>
      <th colspan="7" style="font-weight: bold; padding: 5px;"> Jl. Elang Jawa No.12, Yogyakarta</th>
    </tr>
    </tbody>
    <tr><td></td></tr>
    <tr>
    <th></th>
      <th colspan="7" style="font-weight: bold; padding: 5px;"> Purchase Order</th>
    </tr>
    <tr><td></td></tr>
    <tbody>
    <tr>
    <th></th>
    <?php
    $sql = "SELECT id_project, projectname, description, client, start, deadline FROM project WHERE id_project='$id_project'";
    $result = $conn->query($sql);
    foreach ($result as $value)
    ?>
     <th colspan="7" align="left" style="padding-bottom: 10px; padding-top: 10px; font-weight: bold;"> Nama Project : <?php echo $value['projectname']; ?></th>
        </tr>
        <tr>
            <th></th>
            <th colspan="7" align="left" style="padding-bottom: 10px; font-weight: bold;"> Kode Project : <?php echo $value['id_project']; ?></th>
        </tr>
        <tr>
            <th></th>
            <th colspan="7" align="left" style="padding-bottom: 10px; font-weight: bold;"> Deskripsi : <?php echo $value['description']; ?></th>
        </tr>
        <tr>
            <th></th>
            <th colspan="7" align="left" style="padding-bottom: 10px; font-weight: bold;"> Klien : <?php echo $value['client']; ?></th>
        </tr>
        <tr>
            <th></th>
            <th colspan="7" align="left" style="padding-bottom: 10px; font-weight: bold;"> Tanggal Mulai : <?php echo $value['start']; ?></th>
        </tr>
            <tr>
            <th></th>
            <th colspan="7" align="left" style="padding-bottom: 10px; font-weight: bold;"> Tanggal Akhir : <?php echo $value['deadline']; ?></th>
        </tr>
    </tbody>

    <?php
        $result = mysqli_query($conn, "SELECT id_task FROM task WHERE id_project=$id_project"); $i=0;
        $jumlahTask = mysqli_num_rows($result);
        while($row = mysqli_fetch_assoc($result)){
        $list[$i]=$row['id_task']; $i++;
      }
    for($i=0;$i<$jumlahTask;$i++){
    $result = mysqli_query($conn, "SELECT taskname, taskto, FROM task WHERE a.id_task='$list[$i]'");
    while($row = mysqli_fetch_assoc($result)){
    echo"
    <tbody>
        <tr>
            <th></th>
            <th colspan='7' align='left' style='font-weight: bold;'> Item Pekerjaan : ".$row['taskname']." </th>
        </tr>
        <tr>
            <th></th>
            <th colspan='7' align='left' style='font-weight: bold;'> Divisi Penanggung Jawab : ".$row['taskto']."</th>
        </tr>
        <tr>
            <td style='font-weight: bold; padding: 5px;'></td>
        </tr>
    </tbody>";

    $result2 = mysqli_query($conn, "SELECT a.id_order, a.part_order, a.qty_order, a.unit_order FROM orders a, task b WHERE a.id_task=b.id_task AND a.id_task=$list[$i]");
    while($row2 = mysqli_fetch_assoc($result2)){
    echo"
    <tbody>
        <tr>
            <th></th>
            <th></th>
            <th style='background-color: #2a3f54; color: #fff;' width='350px;'>Detail Item Pekerjaan</th>
            <th align='right' style='background-color: #2a3f54; color: #fff;' width='50px;'>Qty</th>
            <th align='right' style='background-color: #2a3f54; color: #fff;' width='80px;'>Satuan</th>
            <th></th>
            <th></th>
        </tr>
    </tbody>
        <tr>
            <td></td>
            <td></td>
            <td>".$row2['part_order']."</td></td>
            <td align='right'>".$row2['qty_order']."</td></td>
            <td align='right'>".$row2['unit_order']."</td></td>
            <td></td>
            <td></td>
        </tr>";
    }}}
    ?>
</table>
<br>
<br>
</page>
<script  src="js/excels.js"></script>
<script src="js/jquery.min.js"></script>
</body>
</html>