Using FPDI and FDP to generate slightly different pdf files - php

Question

i first import a pdf using fpdi to make a fpdf object, i then perform several changes on that pdf. I clone it to make a custom pdf just adding some texts. Then i output the two files to disk but just one is created and i got a fatal error for the second output :
Fatal error: Call to undefined method stdClass::closeFile() in C:\Program Files\EasyPHP 3.0\www\oursin\oursin\public\scripts\FPDI\fpdi.php on line 534
pieces of my code:
$pdf = new FPDI('L','mm',array(291.6,456));
$fichier=$repertoireGrilles.'GR_IFR.pdf';
$pdf->setSourceFile($fichier);
// add a page
$tplIdx = $pdf->importPage(1);
$pdf->AddPage();
$pdf->useTemplate($tplIdx,0,0,0);
..
...
methods on $pdf
..
..
..
$pdfCopie=clone $pdf;
methods on $pdfCopie
$pdfCopie-> Output($repertoireGrilles.'grillesQuotidiennes/'.$date.'/Grille_'.$date.'_'.$ou.'_copie.pdf','F');
$pdf-> Output($repertoireGrilles.'grillesQuotidiennes/'.$date.'/Grille_'.$date.'_'.$ou.'.pdf','F');
Anybody to help me to tackle this issue that keeps my brain under high pressure for hours (days) :) ?

Answer 1

Cloning, forking, copying, any of that is really dirty. You will have a very hard time with outputs if you take that route. Instead, consider this approach:
Make multiple AJAX calls to a single PHP file, pass a pid value to it so as to differentiate between them.
Go through the exact same document setup for FPDI. This is far more consistent than cloning, forking, copying, etc.
Check pid and do different things to different documents after all the setup is done.
Output the documents.
Here is my jQuery:
$(document).ready(function(){
var i;
for( i=0; i<=1; i++ )
{
$.ajax({
url: 'pdfpid.php',
data: {
pid: i,
pdf: 'document.pdf'
},
type: 'post'
});
}
});
As you can see, it's pretty simple. pdfpid.php is the name of the file that will generate and process the documents. In this case, I want the document with a pid of 0 to be my "original" and the one with a pid of 1 to be the "cloned" document.
// Ensure that POST came in correctly
if( !array_key_exists('pid',$_POST) || !array_key_exists('pdf',$_POST) )
exit();
// Populate necessary variables from $_POST
$pid = intval($_POST['pid']);
$src = $_POST['pdf'];
// Setup the PDF document
$pdf = new FPDI();
$pdf->setSourceFile($src);
$templateID = $pdf->importPage(1);
$pdf->addPage();
$pdf->useTemplate($templateID);
$pdf->SetFont('Arial','B',24);
switch( $pid )
{
default:
break;
case 0:
// "Parent" document
$pdf->Text(10,10,"ORIGINAL");
$filename = "original.pdf";
break;
case 1:
// "Child" document
$pdf->Text(10,10,"CLONED");
$filename = "cloned.pdf";
break;
}
$pdf->Output($filename,'F');
I got both documents as an output, with the unique modifications between the "parent" and the "child" all in place.