Exporter Image Crée en Jpgraph

Bonjour tout le monde s'il vous plait dans ce script j’essaie d'exporter une image(graph) crée en jpgraph en pdf à l'aide de bibliothèque fpdf et quand j’exécute mon code.
cette erreur s'affiche :
Image file has no extension and no type was specified: Resource id #27
Voici le code:

Code:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
<?php
 
session_start();
 
include("fpdf.php");
 
include ("jpgraph/src/jpgraph.php");
include ("jpgraph/src/jpgraph_pie.php");
 
include("connexion.php");
@$red=ociparse($connect,"select count(code_in) as nbr,d.nom from incident i join departement d on d.code_d=i.code_d group by d.nom");
oci_execute($red,OCI_DEFAULT);
while(ocifetch($red)){
$data[]=ociresult($red,1);
$labels[]=ociresult($red,2)."\n(%.1f%%)";
}
 
 
$graph = new PieGraph(600,400);
$graph->SetShadow();
 
$graph->title->Set('Taux d Incident par Département');
$graph->title->SetFont(FF_VERDANA,FS_BOLD,20);
$graph->title->SetColor('black');
 
$p1 = new PiePlot($data);
$p1->SetCenter(0.5,0.5);
$p1->SetSize(0.3);
 
$p1->SetLabels($labels);
 
$p1->SetLabelPos(1);
 
$p1->SetLabelType(PIE_VALUE_PER);
$p1->value->Show();
$p1->value->SetFont(FF_ARIAL,FS_NORMAL,9);
$p1->value->SetColor('darkgray');
 
$graph->Add($p1);
$fichier = $graph->Stroke(_IMG_HANDLER);
 
$pdf=new FPDF();
	$pdf->AddPage();
	$pdf->setFont('Times','B',14);
	$pdf->SetFillColor(230,230,230);
 
 
	$pdf->cell(40,8,"Client: ");
	$pdf->SetTextColor(198,79,0);
	$pdf->cell(50,8,"Youssef S.");
	$pdf->ln();
	$pdf->Image($fichier);
 
	$pdf->output("document.pdf");
	$pdf->output();
 
 
 
?>