creating an image in php, display works, saving to file does not

Question

I am creating an image via a php script using imagepng. This works fine and displays well on the website. even saving-as gives me a valid .png file

header( \         


        

Answer 1

Make sure that PHP has permissions to write files to that folder. chmod probably only affects FTP users or particular users.

And try one at a time. i.e.:

header( "Content-type: image/png" );
imagepng($my_img);

then

$save = "../sigs/". strtolower($name) .".png";
imagepng($my_img, $save);

So that you can isolate errors.

Attempt saving in the same folder as the script first, see if there's any problem.

$save = strtolower($name) .".png";
imagepng($my_img, $save);