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

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Answer 1

Are you sure the relative path is correct? That can be a bit confusing if that script is called from another script.

You could try to change the path to:

$save = $_SERVER['DOCUMENT_ROOT'] . "/sigs/" . strtolower($name) . ".png";

Edit: And of course check the return value of imagepng() and your error log