Micro-optimize with in_array()

[zonuexe]

These points are definitely not the bottleneck, but the chain of comparisons is compiled into fewer bytecode instructions by in_array().

It appears to be valid not only for method calls and property accesses, but also for comparing variables twice.
https://3v4l.org/QQQMr/vld

[phpstan-bot]

You've opened the pull request against the latest branch 1.11.x. If your code is relevant on 1.10.x and you want it to be released sooner, please rebase your pull request and change its target to 1.10.x.

[thg2k]

Does this bring a measurable performance benefit? Because i have the feeling you are sacrificing readability for a negligible (or possibly negative) performance change.

[ondrejmirtes]

This is fine, I like it 👍 Although PHP itself could optimize this by itself when it sees this code pattern.

[ondrejmirtes]

Thank you!