问题
Most languages make it easy to take an array like [1, 2, 3]
and assign those values to variables a
, b
, and c
with a single command.
For example, in Perl you can do
($a, $b, $c) = (1, 2, 3);
What's the corresponding trick in PHP?
[Thanks so much for the lightning fast answer! I know this is a trivial question but all the obvious google queries didn't turn up the answer so this is my attempt to fix that.]
回答1:
Use list():
list($a, $b, $c) = $someArray;
回答2:
Use list
$arr = array(1,2,3);
list($a, $b, $c) = $arr;
回答3:
As of PHP 7.1 you can use the list shorthand []
for array destructuring.
[$a, $b, $c] = [1, 2, 3];
Also as of 7.1 you can destructure non-numerically keyed arrays similar to the way that object destructuring works in ES6. https://stitcher.io/blog/array-destructuring-with-list-in-php
来源:https://stackoverflow.com/questions/2182563/parallel-array-assignment-in-php