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This article will explain in detail how to use the final keyword in PHP. The editor thinks it is very practical, so I share it with you for reference. I hope you can get something after reading this article.

PHP final keyword

Methods modified by final cannot be overridden

Final-decorated classes cannot be inherited

Function:

1. If a class is determined not to be inherited and a method is determined not to be overridden, decorating with final can improve execution efficiency

two。 If a method is not allowed to be overridden by other classes, it can be modified with final.

Class Person {/ / final modified methods cannot be overridden public final function show () {}} class Student extends Person {public final function show () {}} / / final modified classes cannot be inherited final class Person {} class Student extends Person {} about "how to use final keywords in PHP" this article ends here Hope that the above content can be helpful to you, so that you can learn more knowledge, if you think the article is good, please share it for more people to see.

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