PHP中的条件开关语句 [英] Conditional switch statements in PHP

问题描述

我已经很习惯vb.net的 Select Case 语法实际上是一个switch语句，您可以在其中执行Case Is > 5之类的操作，如果匹配，它将执行这种情况.

I'm quite used to vb.net's Select Case syntax which is essentially a switch statement, where you can do things like Case Is > 5 and if it matches, it will execute that case.

由于我不知道PHP的实际名称，我该怎么做我称之为条件开关语句"的事情?

How can I do what I'm going to call "conditional switch statements" since I don't know the actual name, in PHP?

或者，管理此问题的快捷方法是什么?

Or, what's a quick way to manage this?

switch($test)
{
    case < 0.1:
        // do stuff
        break;
}

那是我目前尝试过的.

推荐答案

我认为您正在搜索类似的东西(这并不是您想要的，或者至少我理解的是您的需求).

I think you're searching for something like this (this is not exactly what you want or at least what I understand is your need).

switch (true)查找评估为真实值的案例，并在其中执行代码直到第一个中断；它会遇到.

switch (true) finds the cases which evaluate to a truthy value, and execute the code within until the first break; it encounters.

<?php

switch (true) {

case ($totaltime <= 1):
echo "That was fast!";
break;

case ($totaltime <= 5):
echo "Not fast!";
break;

case ($totaltime <= 10):
echo "That's slooooow";
break;
}

?>

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