How is a gif animation resized using the GraphicsMagick php module?

Question

PHP

Hi all.
I've looked all over Google, I can't find the code for resizing gif animation in GMagick php.
Can you write the simplest processing examples?

Answer 1

if anyone needs it, I recently found
$img = new Gmagick($file);
$image = $img->coalesceImages();
do {
$image->cropthumbnailimage(150, 150);
} while ($image->nextImage());
$image->writeImage($newFile.'.gif');
$img->destroy();

Answer 2

You can do this:
system("convert big.gif -coalesce coalesce.gif");
system("convert -size 200x100 coalesce.gif -resize 200x10 small.gif");