从数组到外部变量的链接？-解网

问：

如何从数组中引用外部变量？例如：如果我更改数组值，那么这些值应存储在变量中由数组元素引用。我试图实现这个想法，但它没有奏效:(

根据我的想法：

echo $one应该输出1

echo $two应该输出2

$one;
$two;
$link = [$first = &$one,  $second = &$two];
$link[0] = 1;
$link[1] = 2;
echo $one;  // does not show 1 
echo $two;  // does not show 2

PHP 按引用传递

    $one;
    $two;
    //you did not initialize the $first and $second if you want them to be the keys like so
    //$link = [$first => &$one,  $second => &$two]; 
    $link = [&$one, &$two];
    $link[0] = 1;
    $link[1] = 2;
   //if you need to initialize them to another variable then do
   //And it should come after you have assigned a value to $link[0] and $link[1]
    $first = $link[0];
    $second = $link[1];
    echo $one;  // show 1 
    echo $two;  // show 2

    echo $first;  // show 1 
    echo $second;  // show 2

从数组到外部变量的链接？

links from an array to external variables?

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