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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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'AND'vs'&&'作为运营商

我有一个代码库,开发人员决定使用ANDOR不是&&||.

我知道运营商的优先级(&&之前and)有所不同,但是对于给定的框架(PrestaShop来说准确),显然不是理由.

你使用的是哪个版本?是and不是更具有可读性&&?或者没有区别?

php coding-style operators

285
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5
解决办法
18万
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php 运算符 && vs AND, || 与或

我刚开始使用 php。我曾经使用ANDandOR但发现了&&and ||,这些运算符有什么区别?

php operators

1
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1
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2093
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operators ×3

php ×3

arguments ×1

coding-style ×1

symbols ×1