Can you briefly introduce the concept of "reflection mechanism" and give examples of application scenarios?

Can you briefly introduce the concept of "reflection mechanism" and give examples of application scenarios? Can you briefly introduce the concept of "reflection mechanism" and give examples of application scenarios?

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Can you briefly introduce the concept of "reflection mechanism" and give examples of application scenarios?

Many java reflection mechanisms are introduced, but php is rarely introduced, but the principles are the same.

Several articles are provided:

Http://stackoverflow.com/questions/37628/what-is-reflection-and-why-is-it-useful

Http://baike.baidu.com/view/1865203.htm

Http://baike.baidu.com/view/3454964.htm

In general, "a class can know its own attributes and methods. This mechanism is reflection ."

Search engines to find out. There are a lot of reflection-related information.