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<?php mb_regex_encoding("UTF-8"); mb_ereg('(?<year>\d+)-(?<month>\d+)-(?<day>\d+)', '2018-12-31', $matches); var_dump($matches);
Output for 5.6.38 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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" }
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 7.3.16 - 7.3.33, 8.1.28 - 8.1.34, 8.2.18 - 8.2.34, 8.3.5 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
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" }
preferences:
39.91 ms | 1166 KiB | 22 Q