php - PHP 是否支持数组解构？

Question

我的意思是这样的:

$arr = ["1", "2", "3"];

$one;
$two;
$three;

$new = [$one, $two, $three] = $arr; 

结果我应该得到:

$one = 1;
$two = 2;
$three = 3;

我试过了，它在 PHP 7.3.2 中有效:

var_dump($one); // returns 1

Answer 1

确实，它被列为 new feature in PHP 7.1 :

The shorthand array syntax ([]) may now be used to destructure arrays for assignments (including within foreach), as an alternative to the existing list() syntax, which is still supported.