saving php generated images (Firefox saves as php document instead of .png)

[tryingtolearn]

No idea if this is a problem with my code or a browser issue

I apologize if this is not the correct place to ask.

 

 

I have a page that is merging two images

On the resulting page I would like to right click and then save the image

 

Works fine in IE but in Firefox the only option to save as for file type is PHP Document.

 

The file that merges the images is

<?php
$png = imagecreatetruecolor($width, $height);
$dart_img = "dartgif.gif";
$image3_id = imageCreateFromGIF($dart_img);
imagecopyresized($png, $image3_id, 0, 0, -$x, -$y, $width, $height, $width, $height);
imagesavealpha($png, true);
$trans_colour = imagecolorallocatealpha($png, 255, 255, 255, 127);
imagefill($png, 0, 0, $trans_colour);
header("Content-type: image/png");
imagepng($png);
imagedestroy($png);
?>

 

I am calling the image using

 

echo "<img src=\"img_process.php?width=$width&height=$height&x=$x&y=$y\">";

 

Any ideas on how to get it to save as an image in Firefox

[Barand]

to save a gd generated image specify the filename in imagepng()

 

imagepng($png, 'myimage.png');

 

This is done on the server - so no browser involved.

[tryingtolearn]

Thanks Barand

 

Worked great

You are always so helpful when I post here.