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PHP 中 static 静态关键字的使用

知其黑、受其白发布时间：2022-03-24 14:54:37 ，浏览量：3

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阐述
简单的代码
- 逻辑
- 总结几点静态关键字相关的规则

阐述

PHP中除了常规类和方法的使用，访问控制之外，还有静态关键字 static。

静态变量可以是局部变量也可以是全局变量，当一个程序段执行完毕时，静态变量并没有消失，它依然存在于内存中，下次在定义时还是以前的值。

常用于递归或子函数中保留之前的值，可以用来定义变量和方法，作用就不具体说了，说一下使用方式，

简单的代码


    
        



        
        
            
                
                
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