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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 git.master, git.master_jit, rfc.property-hooks
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" }

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