php - 反转 switch case 语句(直到为真)

Question

我正在尝试实现一个我只能根据反向开关案例想到的结果，直到 true 语句。请参阅下面的常规案例陈述:

 $i="bar";
   switch ($i) {
    case "apple":
        echo "i is apple.";
        break;
    case "bar":
        echo "i is bar.";
        break;
    case "cake":
        echo "i is cake.";
        break;
    }

我想要的结果如下:

例如:如果 $i = 'apple' 我希望它打印 i is apple.

例如:如果 $i = 'bar' 我希望它打印 i is apple.i is bar.

例如:如果 $i = 'cake' 我希望它打印 i is apple.i is bar.i is cake

答案不一定是用上面的结构就能达到结果

Answer 1

试试这个:

<?php
$i = 'bar';

$cases = array(
    'apple' => 'i is apple.',
    'bar' => 'i is bar.',
    'cake' => 'i is cake.',
);

$resp = '';
foreach($cases as $k => $v)
{
    $resp .= $v;
    if($k == $i) break;
}

echo $resp;
?>

Codepad example