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Output for 8.1.32, 8.2.0 - 8.2.28, 8.3.0 - 8.3.19, 8.4.1 - 8.4.5
object(WithPromotedProps)#1 (1) { ["data":"WithPromotedProps":private]=> string(0) "" } object(WithPromotedProps)#2 (0) { ["data":"WithPromotedProps":private]=> uninitialized(string) } object(WithoutPromotedProps)#1 (1) { ["data":"WithoutPromotedProps":private]=> string(0) "" } object(WithPromotedPropsButNotReadonly)#3 (0) { ["data":"WithPromotedPropsButNotReadonly":private]=> uninitialized(string) }

preferences:
58.53 ms | 412 KiB | 5 Q