add mb_check_encoding with array value

[jeremyFreeAgent]

I tried to address the #422 issue.

First time on that project. I'm not sure about what I've done because I'm afraid we cannot do anything for PHP <7.2.

[alexandre-daubois]

Caution, the doc tells that values passed as array are validated recursively 🙂

[jeremyFreeAgent]

Caution, the doc tells that values passed as array are validated recursively 🙂

Thanks!

[derrabus]

Let's kill PHP 7.1 then, shall we? #428

[stof]

For PHP 7.1, we need to emulate the PHP 7.1 behavior of mbstring, which is not supporting arrays (as we cannot make a project using PHP 7.1 with native mbstring support arrays by installing the polyfill as it would not replace the native functions).
That's totally possible to emulate (triggering the warning and returning null)

[jeremyFreeAgent]

Thank you @stof and @nicolas-grekas for the PHP < 7.2 behaviour.

[nicolas-grekas]

Thank you @jeremyFreeAgent.

[staabm]

thx for merging. it seems this fix is not yet part of any release..? is there a timeline when this gets released?