ImageCreateFromGif() returns an image identifier representing the image obtained from the given filename.
ImageCreateFromGif() returns an empty string on failure. It also outputs an error message, which unfortunately displays as a broken link in a browser. To ease debugging the following example will produce an error GIF:
Note: Since all GIF support was removed from the GD library in version 1.6, this function is not available if you are using that version of the GD library.