how to resolve min/max width error domp while generating pdf?

i'm getting the following error in my code while converting to pdf

there's no inline block statement included and width is defined for every table header still issue is persistent

<?php
//print_invoice.php
if(isset($_GET["pdf"]) && isset($_GET["id"]))
{
    require_once 'pdf.php';
    include('connection2.php');
    $output = '';
    $statement = $connect->prepare("
  SELECT * FROM POrder
  WHERE order_id = :order_id
  LIMIT 1
 ");
    $statement->execute(
    array(
        ':order_id'       =>  $_GET["id"]
    )
);
$result = $statement->fetchAll();
foreach($result as $row)
{
    $output .= '
   <table width="100%" border="1" cellpadding="5" cellspacing="0">
<tr>
 <td colspan="2" align="center" style="font-size:18px"><b>Invoice</b></td>
</tr>
<tr>
 <td colspan="2">
  <table width="100%" cellpadding="5">
   <tr>
    <td width="65%">
     To,<br />
     <b>Vendors Name</b><br />
     Name : '.$row["vendorname"].'<br />
     Description : '.$row["description"].'<br />
    </td>
    <td width="35%">
     Reverse Charge<br />
     Invoice No. : '.$row["order_no"].'<br />
     Invoice Date : '.$row["order_date"].'<br />
    </td>
   </tr>
  </table>
  <br />
  <table width="100%" border="1" cellpadding="5" cellspacing="0">
   <tr>
    <th>Sr No.</th>
    <th>Item Name</th>
    <th>Quantity</th>
    <th>Price</th>
    <th>Actual Amt.</th>
    <th colspan="2">GST (%)</th>
    <th rowspan="2">Total</th>
   </tr>
   <tr>
    <th></th>
    <th></th>
    <th></th>
    <th></th>
    <th></th>
    <th>Rate</th>
    <th>Amt.</th>
   </tr>';
    $statement = $connect->prepare(
            "SELECT * FROM POrder_item
   WHERE order_id = :order_id"
       );
        $statement->execute(
        array(
            ':order_id'       =>  $_GET["id"]
        )
    );
    $item_result = $statement->fetchAll();
    $count = 0;
    foreach($item_result as $sub_row)
    {
            $count++;
            $output .= '
   <tr>
    <td>'.$count.'</td>
    <td>'.$sub_row["item_name"].'</td>
<td>'.$sub_row["item_quantity"].'</td>
<td>'.$sub_row["item_price"].'</td>
<td>'.$sub_row["item_price_bt"].'</td>
<td>'.$sub_row["item_gst"].'</td>
<td>'.$sub_row["item_price_at"].'</td>
    <td>'.$sub_row["final_amount"].'</td>
   </tr>
   ';
        }
        $output .= '
  <tr>
   <td align="right" colspan="11"><b>Total</b></td>
   <td align="right"><b>'.$row["total_after_tax"].'</b></td>
  </tr>
  <tr>
   <td colspan="11"><b>Total Amt. Before Tax :</b></td>
   <td align="right">'.$row["total_before_tax"].'</td>
  </tr>
  <tr>
   <td colspan="11">Add : GST :</td>
   <td align="right">'.$row["gst"].'</td>
  </tr>
   <td colspan="11"><b>Total Tax Amt.  :</b></td>
   <td align="right">'.$row["order_total_tax"].'</td>
  </tr>
  <tr>
   <td colspan="11"><b>Total Amt. After Tax :</b></td>
   <td align="right">'.$row["total_after_tax"].'</td>
  </tr>

  ';
    $output .= '
      </table>
     </td>
   </tr>
   </table>
   ;
    }
    $pdf = new Pdf();
    $file_name = 'Invoice-'.$row["order_no"].'.pdf';
    $pdf->loadHtml($output);
    $pdf->render();
    $pdf->stream($file_name, array("Attachment" => false));
}
?>

// pdf.php

<?php
require_once 'dompdf/autoload.inc.php';
use Dompdf\Dompdf;
class Pdf extends Dompdf{
public function __construct() {
parent::__construct();
}
}
?>

i expect to get a pdf but instead i get this error

Fatal error: Uncaught exception 'Dompdf\Exception' with message 'Min/max width is undefined for table rows' in /Applications/XAMPP/xamppfiles/htdocs/NTPC/dompdf/src/FrameReflower/TableRow.php:72 Stack trace: #0 /Applications/XAMPP/xamppfiles/htdocs/NTPC/dompdf/src/FrameDecorator/AbstractFrameDecorator.php(903): Dompdf\FrameReflower\TableRow->get_min_max_width() #1 /Applications/XAMPP/xamppfiles/htdocs/NTPC/dompdf/src/FrameReflower/AbstractFrameReflower.php(268): Dompdf\FrameDecorator\AbstractFrameDecorator->get_min_max_width() #2 /Applications/XAMPP/xamppfiles/htdocs/NTPC/dompdf/src/FrameDecorator/AbstractFrameDecorator.php(903): Dompdf\FrameReflower\AbstractFrameReflower->get_min_max_width() #3 /Applications/XAMPP/xamppfiles/htdocs/NTPC/dompdf/src/FrameReflower/AbstractFrameReflower.php(268): Dompdf\FrameDecorator\AbstractFrameDecorator->get_min_max_width() #4 /Applications/XAMPP/xamppfiles/htdocs/NTPC/dompdf/src/FrameDecorator/AbstractFrameDecorator.php(903): Dompdf\FrameReflower\AbstractFrameReflower->get_min_max_width in /Applications/XAMPP/xamppfiles/htdocs/NTPC/dompdf/src/FrameReflower/TableRow.php on line 72

Solution

It seems that including dompdf like you do is no longer supported, see issue 1153. The guy who's asking gets exactly the same error messages as you do.

I'd recommend to follow the dompdf installation manual and install it with composer (as it is imo thyoue most hassle-free way in the long term). I've also found something on installing composer on XAMPP, but I can't really help with this since I don't know XAMPP. As a fallback you could download a pre-configured package (described some lines below).

And also cheack the quick start tutorial to see if dompdf genereally works instead of using your own code first, because some of it might be deprecated.

Hope this helps, good luck!