I'm writing a PHP script to take several images and compile them together into a GIF. Searching for resources on this subject, I have encountered several PHP specific ways to do this, such as ImageMagik or GifCreator but the resources I encounter, including on here, seem rather old. GifCreator hasn't been updated in 3 years, and I find that it fails to resize certain compressed gifs.
In the last several years, GIF and gif creation sites have exploded in popularity, and I can't imagine these methods from 2009 are still the most efficient way of going about this task.
What is the most efficient (stable, resource efficient) and modern way to create GIFs from a collection of images along with resizing GIFs with PHP? Are there better libraries available or is PHP not a good choice for this task?