Still works.
(Also, newer than what?)
The challenge was not working for some time, because mbstring extension was missing for php.
It should work again.
The geeks shall inherit the properties and methods of object earth.
Was still not 100%. Fixed and tested.
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After solving I want to give this hint in 2022:
Make sure to check and test on the right PHP version if you want to debug locally. It matters a lot.