Approved at some point.

Some Of Test cases are Failing Even i tried it mannually and my code generate correct answer

print it to the console, then copy/paste

No problem :D It is weird dealing with prototype methods, and this, but luckily you won't find many other katas like this :> Happy coding!

Well... I knew it was something "stupid", on my search I did found "this" keyword but I was trying to use it wrongly xD

Thank you so much for your time!

Not a Kata issue since it does not hamper the solvability of this Kata whatsoever. If the solver took the time to skim through the "Preloaded" section of the Kata description, good - he/she can save a bit of time later by leveraging the predefined say_list() function. Otherwise, re-implementing it isn't that much of a hassle either - any solver capable of comprehending the OOP concepts in this Kata should be able to reproduce the logic in say_list() by writing a simple loop.

UPDATE: The section mentioning the preloaded helper function has been repositioned to the last subsection of the "Task" section - hopefully, this should mean that solvers skipping the "Lesson" section of the description will no longer accidentally skip the "Preloaded" section as well the appropriate location in the Task section - solvers should now have no excuse whatsoever for overlooking it themselves.

console.log(this);

Noob question, I don't know how to access the given word...

Preloaded for you is a function say_list which receives an array as its only argument and has the following behaviour

What a joke. The description of every kata in the "Object-Oriented PHP" series is a 2-hours-long read, and anybody who knows OOP WILL skip everything before the task explanation - you can't be serious mentioning that the most annoying part of the kata is actually solved for you somewhere in a place where the user is likely to not notice the hint.

@marmotteNZ you may find this useful (though it's in JS, not Python)

EDIT: Additionally, since you mentioned that this Kata was your "first try", you may want to read "Creating your first Kata" carefully in order to better understand what the CW community expects of Kata authors, cheers :-)

From the Kata Description:

Preloaded for you is a function say_list which receives an array as its only argument and has the following behaviour:

say_list(["Apple"]) // => "Apple"
say_list(["Apple", "Orange"]) // => "Apple or Orange"
say_list(["Apple", "Banana", "Dragonfruit", "Kiwi"]) // "Apple, Banana, Dragonfruit or Kiwi"

You may find this function useful when implementing one of the methods of one of the classes in this Kata.

From the Kata Description:

Preloaded for you is a function say_list which receives an array as its only argument and has the following behaviour:

say_list(["Apple"]) // => "Apple"
say_list(["Apple", "Orange"]) // => "Apple or Orange"
say_list(["Apple", "Banana", "Dragonfruit", "Kiwi"]) // "Apple, Banana, Dragonfruit or Kiwi"

You may find this function useful when implementing one of the methods of one of the classes in this Kata.

WTF is say_list()? It can't find even on php.net .

I should have gone with Math.min (which was my initial hunch)
great solution!