If you want to see the shape of things to come and adopt bleeding edge features early, you can include this config file in your project's phpstan.neon:
Of course, there are no backwards compatibility guarantees when you include this file. The behaviour and reported errors can change in minor versions with this file included. Learn more
Fix a few regex class parsing usecases (#3488), thanks @mvorisek!
Fix preg_match_all with PREG_SET_ORDER does not see capture group as optional (#3506), #11661, thanks @staabm!
Fix false-positive with preg_match(): Strict comparison using === between '' and non-falsy-string…ween '' and non-falsy-string (#3509), #11744, thanks @staabm!
Function signature fixes
functionMap: a bit more precise get_defined_constants (#3537), thanks @janedbal!
