Dealing with changes to the GD extension

The GD extension is an image-manipulation extension that leverages the GD library. GD originally stood for GIF Draw. Oddly, the GD library had to withdraw support for the Graphics Interchange Format (GIF) after Unisys revoked the open source license for the compression technology used when generating GIFs. After 2004, however, the Unisys patent on this technology expired and GIF support was restored. As it stands today, the PHP GD extension offers support for the Joint Photographic Experts Group (JPEG or JPG), Portable Network Graphic (PNG), GIF, X BitMap (XBM), X PixMap (XPM), Wireless Bitmap (WBMP), WebP, and Bitmap (BMP) formats.

Tip

For more information on the GD library, see https://libgd.github.io/.

Let's now have a look at the impact of resource-to-object migration on the GD extension.

GD extension resource-to-object migration

As with other PHP extensions that previously used resources, the GD extension has also primarily...