Recently, I’ve spent some spare time hanging out in http://wordpress.stackexchange.com/ and try to help some people. At the same time, looking for some ideas for blogging.
In this article, I’ll show you how to write a plugin that will create QR code image for every post and page with wp_remote_get.
#1, Add QR image to post and page only.
#2, When plugin activated, it should create a folder to store QR image.
#3, Before generating QR image, it needs to check if we’ve created one for the particular post/page.
#4, Save QR image to folder.