“I'm learning PHP for a new position and tried using codewars and codefights. I'm not impressed by the UX with either of them, they're over gamified. The quality of Kata on codewars is not good (at least the easy stuff) and both are broken in random trivial places.
Can you offer suggestions on similar platforms that are less gamified, higher quality challenges, and more reliable?

Take a look at the open bugs and try to fix some. Even if you don't feel comfortable sending a pull request you can learn a lot by going through the whole process on a real project.

“I'm learning PHP for a new position and tried using codewars and codefights. I'm not impressed by the UX with either of them, they're over gamified. The quality of Kata on codewars is not good (at least the easy stuff) and both are broken in random trivial places.
Can you offer suggestions on similar platforms that are less gamified, higher quality challenges, and more reliable?

Take a look at the open bugs and try to fix some. Even if you don't feel comfortable sending a pull request you can learn a lot by going through the whole process on a real project.