superposer 2 images

[steve3000]

J'ai récupérer ce code, mais je n'ai qu'un carré gris quand je l'affiche

Code :

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function image_overlap($background, $foreground){
	$image = imagecreatefromjpeg("carte/1-1.jpg");->image de fond 
	$insert = imagecreatefrompng("carte/maison.png");->image du dessu
	$image = image_overlap($image, $insert);
	$insertWidth = imagesx($foreground);
	$insertHeight = imagesy($foreground);
 
	$imageWidth = imagesx($background);
	$imageHeight = imagesy($background);
	$overlapX = $imageWidth-$insertWidth-5;
	$overlapY = $imageHeight-$insertHeight-5;
               imagecolortransparent($foreground,imagecolorat($foreground,0,0));
               imagecopymerge($background,$foreground,$overlapX,$overlapY,0,0,$insertWidth,$insertHeight,100);
   return $background;
 
    }
 
$tab[1][1] = array('img' => (emplacement de mon image, 'marche' => 0, 'tag' => 0, 'movable' => 0);

Un peu d'aide serait la bienvenue, merci d'avance
Stéphane

[steve3000]

code dans une page php extérieur au code

Code :

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<?php
header('Content-type: image/jpeg');
header('Content-type: image/png');
 
$image = imagecreatefromjpeg('1-1.jpg');
$insert = imagecreatefrompng('maison.png');
$image = image_overlap($image, $insert);
 
function image_overlap($background, $foreground){
   $insertWidth = imagesx($foreground);
   $insertHeight = imagesy($foreground);
 
   $imageWidth = imagesx($background);
   $imageHeight = imagesy($background);
 
   $overlapX = $imageWidth-$insertWidth-5;
   $overlapY = $imageHeight-$insertHeight-5;
               imagecolortransparent($foreground,imagecolorat($foreground,0,0));
               imagecopymerge($background,$foreground,$overlapX,$overlapY,0,0,$insertWidth,$insertHeight,100);
   return $background;
    }
header('Content-type: image/jpeg');
$ima = imagecreatefromjpeg($background);
imagejpeg($ima);
?>

Affiche une erreur :

Warning: imagejpeg(): supplied argument is not a valid Image resource in C:\Program Files\wamp\www\test 2\rotation.php on line 32

Que dois-je comprendre à part que je ne peux pas l'afficher?
Merci pour la réponse
A+ Stéphane