Question

因此,我有一个变数,我们会说加固=2美元。

if i want to check that variable for either 2 conditions I d typically do if($string == 2 || $string == "Hello world"):

Is there anyway to combine these two args into something shorter like if($string(==2 || =="hello world")):

I ve googled this but I cant come up with the right phrase to get back the answer I m looking for so explaining it at this point is the easiest.

Answer 1

if (in_array($string, array(2,  Hello world )))

Answer 2

我的一位病人想回答这一点。

function f($a){
    $args = func_get_args();
    return in_array($a, array_slice($args, 1));
}

旧

if(f($str, 1, "hello world", 3, "etc")){
}

Answer 3

如果变数有许多国家可以用不同方式处理,请使用<代码>switch。声明:

switch($var)
{
    case 1:
    case 2:
    //some action
    break;
    case 3:

    break;
}