如果你必须使用||开关，那么你可以尝试:

$v = 1;
switch (true) {
    case ($v == 1 || $v == 2):
        echo 'the value is either 1 or 2';
        break;
}

如果不是，你更喜欢的解决方案是

switch($v) {
    case 1:
    case 2:
        echo "the value is either 1 or 2";
        break;
}

问题是这两种方法在处理大型案件时效率都不高。想象一下，从1到100，这是完美的

$r1 = range(1, 100);
$r2 = range(100, 200);
$v = 76;
switch (true) {
    case in_array($v, $r1) :
        echo 'the value is in range 1 to 100';
        break;
    case in_array($v, $r2) :
        echo 'the value is in range 100 to 200';
        break;
}

http://php.net/manual/en/control-structures.switch.php 例子

$today = date("D");

    switch($today){

        case "Mon":

        case "Tue":

            echo "Today is Tuesday or Monday. Buy some food.";

            break;

        case "Wed":

            echo "Today is Wednesday. Visit a doctor.";

            break;

        case "Thu":

            echo "Today is Thursday. Repair your car.";

            break;

        default:

            echo "No information available for that day.";

            break;

    }

匹配表达式(PHP 8)

PHP 8引入了一个新的匹配表达式，它与switch类似，但语法更短，区别如下:

不需要break语句 使用逗号组合条件 返回一个值 具有严格的类型比较 要求比较是详尽的(如果没有找到匹配，UnhandledMatchError将被抛出)

例子:

match ($value) {
  0 => '0',
  1, 2 => "1 or 2",
  default => "3",
}

Try

switch($value) {
    case 1:
    case 2:
        echo "the value is either 1 or 2";
        break;
}

switch ($value)
{
    case 1:
    case 2:
        echo "the value is either 1 or 2.";
    break;
}

这就是所谓的“穿过”案例块。这个术语存在于大多数实现switch语句的语言中。

使用以下代码:

switch($a) {
    case 1:
    case 2:
        .......
        .......
        .......
        break;
}

1和2都调用该块。