代码":"在PHP中 [英] the code " : " in php

问题描述

我很想知道php中的语法:"是什么意思，我已经看过几次了，但是我似乎无法自己解释一下.您还可以在句子中使用它吗?...还是我的意思是示例代码?

I'm curious to know what the syntax " : " mean in php I've seen it a couple of times but I can't seem to explain it to myself. Can you also use it in a sentence....or i mean, sample code?

**

对不起，我指的是三元运算符.也感谢其他条目.抱歉，一开始我不知道该怎么称呼.

sorry folks, I was referring to the ternary operator. Thanks for the other entries as well. I didn't know what to call it at first, apologies.

推荐答案

也许您指的是三元运算符，它使用??和:如下:

Perhaps you are referring to the ternary operator, which uses a ? and : as follows:

$variable = boolean_expression ? "true_value" : "false_value";

此代码是if-else的简写:

This code is shorthand for an if-else:

if (boolean_expression) {
   $variable = "true_value";
}
else {
   $variable = "false_value";
}

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