Test, ob das hier auch andere lesen können.

Nice explanation for identity.

TIL about preg_match_all and how its return value is the number of matches.

Are their some cases in which the possible honors received are downgraded?

Nope honors are given based on the kata lvl u attempted :)

Check out this page for more info => (https://github.com/Codewars/codewars.com/wiki/Honor-&-Ranks)

I understand x => x as a function just giving back the parameter.
Why are only the true ones counted?

Yes, submitting will be easier than writing the sample tests yourself.

I like that solution because one could easily change the word 'bingo' with 'zakila' for example.

I like.

debugger as well! I had "debugger;" in my code because I tend to copy my code into the browser console and debug it there and it was keeping me from passing the final test. I removed it and then I passed the kata.

The length is odd by the definition:

You are given an odd-length array of integers

This working is actually just luck and just works for an uneven array length.
If you add another 1 to the test case [1, 1, 2] it doesn't work anymore.

you don't have to know german to pass the kata.

I canot solve the puzzle due to the german o, even if i write it by hand :-(

What browser are you in? Have you any browser extensions that block scripts like adblockers? Might be something like that?