Shulou(Shulou.com)06/03 Report--

Php is easy to understand what knowledge points, I believe that many inexperienced people do not know what to do, so this paper summarizes the causes of the problem and solutions, through this article I hope you can solve this problem.

First, the difference between self and static in a class and what is late static binding (late static buildings)

Self is used to call the contents of the class in which this code is located, while static is used to call the contents of the class in the instance.

The test code is as follows:

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