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Reference — What does this symbol mean in PHP?

What is this?

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.

Why is this?

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 …

php arguments symbols operators

4314
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21
解决办法
63万
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PHP短路延迟评估,它在php.net手册中的位置?

很抱歉,这听起来像是一个非常愚蠢的问题.

但我用Google搜索了网络,并专门搜索了php.net网站和stackoverflow.com网站. 我知道PHP在使用and, or, &&, ||运算符时会进行短路延迟评估,但在PHP手册中它的声明清晰明了?

我发现只有维基百科是唯一的'可信'来源,它说PHP对这些运营商进行了懒惰的评估.

php lazy-evaluation short-circuiting

18
推荐指数
1
解决办法
5864
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