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<?php var_dump($d = date('Y-\WW-w'), date('Y-m-d')); var_dump($t = strtotime($d)); var_dump((new DateTime('@'.$t))->format('Y-\WW-w')); var_dump((new DateTime('@'.$t))->format('Y-m-d')); var_dump(DateTime::createFromFormat('Y-\WW-w', $d));
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.5, 7.4.7 - 7.4.33, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(10) "2019-W25-3" string(10) "2019-06-19" int(1560895200) string(10) "2019-W25-2" string(10) "2019-06-18" bool(false)
Output for 7.3.32 - 7.3.33, 8.0.13
string(10) "2019-W25-3" string(10) "2019-06-19" int(1560902400) string(10) "2019-W25-3" string(10) "2019-06-19" bool(false)
Output for 7.4.6
string(10) "2020-W21-1" string(10) "2020-05-18" int(1589752800) string(10) "2020-W20-0" string(10) "2020-05-17" bool(false)

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