"help pls" is not a valid kata issue. The issue is in your code.

I ran your code snippet, and it runs into allocation errors (because you're trying to create an array from an infinite iterator). This is a bit more difficult than 8kyu in JS, and you need to handle infinite sequences correctly.

Not a kata issue.

OP solved it, closing

The ISSUE label is for provable kata issues. Please use the QUESTION label when asking a question. See https://docs.codewars.com/training/troubleshooting/#post-discourse.

OP solved it, closing!

not a kata issue, closing!

not a kata issue ! YOu miss this part If present in the list, number 0 will be neutral, hence not fight for either side.

m: 601, n: 462.04496527904
Failed asserting that two arrays are equal.
Expected: Array (
    0 => 462.044965279041
    ...
    599 => 277226.9791674246
    600 => 277689.0241327036      // 601 multiples
)
Actual  : Array (
    0 => 462.044965279041
    ...
    599 => 277226.9791674246      // only 600 multiples
)

Check the post below.

Print the input, your answer is missing one multiple sometimes. Not a kata issue.

Read this again:

If input is below 0 or above 12 throw an exception of type ArgumentOutOfRangeException (C#) or IllegalArgumentException (Java) or RangeException (PHP) or throw a RangeError (JavaScript) or ValueError (Python) or return -1 (C).

Your code is not complete, not a kata issue.

Your code is wrong, not a kata issue. Look how to properly use currying in PHP.

You need one more cast.