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Output for 7.3.16 - 7.3.33, 8.1.28 - 8.1.32, 8.2.18 - 8.2.28, 8.3.5 - 8.3.19, 8.4.1 - 8.4.5
array(7) { [0]=> string(10) "2018-12-31" [1]=> string(4) "2018" [2]=> string(2) "12" [3]=> string(2) "31" ["day"]=> string(2) "31" ["month"]=> string(2) "12" ["year"]=> string(4) "2018" }
Output for 7.3.0, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
array(7) { [0]=> string(10) "2018-12-31" [1]=> string(4) "2018" [2]=> string(2) "12" [3]=> string(2) "31" ["day"]=> string(2) "31" ["year"]=> string(4) "2018" ["month"]=> string(2) "12" }
Output for 5.6.38, 7.0.33, 7.1.25, 7.2.0 - 7.2.33
array(4) { [0]=> string(10) "2018-12-31" [1]=> string(4) "2018" [2]=> string(2) "12" [3]=> string(2) "31" }

preferences:
167.9 ms | 414 KiB | 5 Q