Bump to PHP 8.1 and add types everywhere #51
Merged
+71
−117
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Since PHP 8.1 will become the new minimum requirement for DBAL and ORM, I'd like to modernize the event manager to this language level as well.
This is a breaking change because of stricter parameter types and added native return types. If we agree to do this, I'd create a 2.0.x branch off 1.2.x and retarget this PR.