This is a collection of questions that come up every now and then about syntax in PHP. This is also a Community Wiki, so everyone is invited to participate in maintaining this list.
It used to be hard to find questions about operators and other syntax tokens.¹
The main idea is to have links to existing questions on Stack Overflow, so it's easier for us to reference them, not to copy over content from …
我在使用PHP的OOP上刷新自己,我看到了将函数和/或变量设置为静态的示例.我何时以及为什么要将变量/函数设置为静态？我已经完成了其他语言,并且不记得曾经使用静态,我从来没有找到真正的目的.我知道它的作用,但为什么不只是使用变量呢？