typehint for mixed array

[AnjaLiebermann]

This method

    private function toArray(DtoInterface $dto): array
    {
        return json_decode(json_encode($dto), true, 512, JSON_THROW_ON_ERROR);
    }

converts objects to an associative array, which will have different contents depending of the object, which is fed into the method. So while the key is always a string the value can be anything. What is the proper annotation for level 6 in this case?

    /*
     * @return mixed[]
     */

results in:

        Method App\Tests\End2EndTest\FrontendErrorControllerTest::toArray() return type 
        has no value type specified in iterable type array.
         💡 Consider adding something like array<Foo> to the PHPDoc.
         You can turn off this check by setting checkMissingIterableValueType: false in your  phpstan.neon.

I get the same result with this annotation:

    /*
     * @return array>string,mixed>
     */

[ondrejmirtes]

Hi, mixed[] should be sufficient from level 6 point of view. Can you try reproducing your problem on phpstan.org?

[AnjaLiebermann]

There it works and shows no errors:
https://phpstan.org/r/45b3dc19-ee56-4fe2-a1b7-f63d3f1f87d0#

[AnjaLiebermann]

Now it gets really weird:
I deactivated the setting checkMissingIterableValueType: false and the activated it again and now it works.