[php classes and objects] Final keyword

This article introduces the [php classes and objects] Final keyword, which has a certain reference value. Now I share it with you. Friends in need can refer to it

Final keyword

Declared as Final:

1.类，不能被继承。 2.方法，不能被子类覆盖。 3.属性,常量，不能被定义为 Final

Example #1 Final 方法示例

Example #2 Final 类示例

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