It wants the first character removed as well, if you set it to 0 it will also grab that character.

Just curious why is it 1 instead for 0? Isn't the first letter placed at 0?

Great!

This is because substr prints the number of characters after the starting index. Had you started from 0, you would just need to subtract 1 to exclude the last element.
But since you have started from 1, it has shifted the range by 1, which means the last character is included again. So you need to subtract 2.

According to documentation, the last index is the index of the first character to exclude, rather than the last one to include

Have you gotten an answer yet?

This make sense. You are getting the strings you want directly.

I also did -2 instead of -1 and it worked lol

I rank best practice so it gets noticed and hopefully fixed.. in this case I don't think that's going to happen!

First time I'm voting Best Practice for a cheat. Well, there's a first time for everything I guess.

We're almost a year later now ..

because there are no random tests.

How is it possible?