如何用交换情况来做一个或语句?(PHP)

How would I go about converting this if statement:

如何转换if语句:

for($i = 1; $i < $argc; $i++)
{
    ...
    if(in_array($argv[$i], array('-V', '--version')))
    {
        $displayVersion = TRUE;
    }
    ...
}

Into a switch case without needing to write two switch statements?

不需要写两个交换语句就可以转换成交换情况?

4 个解决方案

#1

switch($argv[$i])
{
    case '-V':
    case '--version':
        $displayVersion = true;
    break;
}

#2

A direct translation would be as follows:

直接翻译如下:

switch(in_array($argv[$i], array('-V', '--version'))){
    case true:
        $displayVersion = TRUE; break;
}

However you could also do something like this, which is clearer.

但是你也可以这样做，这样更清楚。

switch($argv[$i]){
    case '-V':
    case '--version':
        $displayVersion = TRUE; break;
}

Depending on what you want to do, a one liner may be more clear, although it differs from the above code in that the variable will be set to false if in_array($argv[$i], array('-V', '--version')) is false. Given your variable name I doubt this is a bad thing.

根据您想要做的，一行代码可能更清晰，尽管它与上面的代码不同，因为如果in_array($argv[$i]， array('-V'， '- version')是假的，那么变量将被设置为false。考虑到你的变量名，我怀疑这是件坏事。

$displayVersion = in_array($argv[$i], array('-V', '--version'));

#3

switch ($argv[$i])
{
    case '-V':
    case '--version':
        $displayVersion = true;
        break;
    case 'other':
        // do other stuff
        break;
    default:
        // your "else" case would go here
        break:
}

#4

In addition to fixing this, you may want to look at the PHP getopt command, which is a function to process command-line arguments in both short and long formats.

除了解决这个问题之外，您可能还需要查看PHP getopt命令，它是一个处理短格式和长格式命令行参数的函数。

Edit: Actually, here's a code block

编辑:实际上，这是一个代码块

$options = getopt('V', array('version'));

if ($options['V'] || $options['version']) {
    $displayVersion = TRUE;
}

Note that you need PHP 5.3 for this to work on Windows.

注意，需要PHP 5.3才能在Windows上工作。

#1

switch($argv[$i])
{
    case '-V':
    case '--version':
        $displayVersion = true;
    break;
}

#2