Spread Operator for arrays with string keys in PHP

Question

$ary = [3, 4, 5];
return [1, 2, ...$ary]; // same as [1, 2, 3, 4, 5]

Now I am trying a simple spread operator on 'Object' but it is failing

 $a = ['a' => 1];
 $b = ['b' => 2];
 $c = [...$a, ...$b]; // Expected $c = ['a' => 1, 'b' => 2]

Am I missing something?

Cannot unpack array with string keys

I don't understand why you call this "Object". Apart from that, doesn't the error message already tell you what's up? — Ulrich Eckhardt, May 23 '21 at 06:07
Dear this functionality will be coming in php 8.1 and so on, right now its not supported. — Muhammad Asif, May 23 '21 at 06:31
Even the question you linked to specifically addresses this in the answer: _"Caveat: The unpacked array/Traversable can only have integer keys."_ — El_Vanja, May 23 '21 at 07:55

score 0 · Answer 1 · answered May 23 '21 at 06:17

0

php simply does not support that,,, to obtain the expected result you would need to use array_merge

$a = ['a' => 1];
$b = ['b' => 2];
$c = array_merge($a, $b); // this will have $c = ['a' => 1, 'b' => 2]

answered May 23 '21 at 06:17

Sami Akkawi

1 Answers1