How to use PHP to write a resource download security chain class
This article mainly explains "how to use PHP to write a resource download anti-theft chain class", the content of the article is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in depth, together to study and learn "how to use PHP to write a resource download anti-theft chain class"!
The following is a self-written simple PHP hotlink protection class (reorganized into a class file for later improvement)
The copy code is as follows:
