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I am trying to create hundreds of PDF files with TCPDF using a while loop. The problem is that it seems to create only the first one and then stops. I turned on error reporting and there is no error.

I basically get the data with:

ob_start();
while($row = mysqli_fetch_assoc($data)) { 

   $invoice_id = $row['invoice_id'];

   require_once('tcpdf_include.php');

   // create new PDF document
   $pdf = new MYCUSTOMPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);
   
   // All $pdf-> settings are here

   // add a page
   $pdf->AddPage();
   $pdf->lastPage();
   $pdf->Output('/path/to/'.$invoice_id.'.pdf', 'F');
   echo "Generated ". $invoice_id."\n";

}

The .PDF gets generated fine, but it stops there. It doesn't continue with the next in the loop.

Anybody with TCPDF experience knows what is wrong? I can't figure it out and there is no error even with error_reporting(E_ALL);. Any help is greatly appreciated.

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  • This should help stackoverflow.com/questions/16896671/… Commented Aug 9, 2020 at 2:15
  • wondering why your require_once is inside the loop. if it "has to be in the loop" because it does stuff, then require_once is the wrong require, because it will only be run once. (also, maybe it changes $data?) ;o) finally: are you certain that there's actually more than one row? Commented Aug 9, 2020 at 5:36
  • I dug into this myself and found that there is two issues with this. No answer, but wish there was. 1. When you use $pdf->Output(); it forces close(), which then cancels you to recreate another PDF. 2. The only work around that I've was unable to test, was to create a function that call during the loop. sourceforge.net/p/tcpdf/discussion/435311/thread/73dd3a84 all other options on stackoverflow did not work for me. There are older links that implies you can create a zipfile and then stuff all the pdfs into that, but I could not get that to work either. Good luck mate. Commented Jan 5, 2021 at 4:35
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