done ;-)

please reject i messed up

Code is working

I've fixed the description

No test for "" => ""

done.

• Missing return type in initial solution setup

• You should not compare user's solution with their own! Instead, you should make a reference solution and hopefully differs from the user solution

I don't know if you could get what you wanted. In case of doubt you can refer to other katas in PHP using arrays in input to see how they do it. It's something to be cautious with in many languages.

I might not have been clear, there exists one cheap solution: compute expected separately before calling the user function, and it's fine too.

Hi. As far as I know that's not possible. I might be wrong though. To make sure the input array doesn't get changed I will create the array in a separate private function.

Hi. I don't know much PHP so I cannot tell, but please make sure the user cannot modify the input, or the tests can be cheated easily. There was this problem originally in Python and Javascript, it has just been fixed. You must pass a copy to the user, or make sure expected is computed before calling the user's function.

Nice Translation

Should be fine.

Though, instead of

 random_int( 0, 1 << random_int( 8, 25 ))

It's better to just do

random_int( 0, 1 << 24 )

I changed it afterward in the other languages, the first code will generate more zeros in colors R and G, actually there's no reason for that.

If there's something else to fix let me know.

Ok I found the solution

The easiest way is probably to generate for each string a random integer inferior to 2 ^ 24 and convert it to hex. That's why I did in Python and Js and it works like a charm.