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<?php $date = "2022-01-02 00:00:00"; $startOfYear = DateTime::createFromFormat('!Y+', $date); var_export( 1 + (int) ($startOfYear->diff(new DateTime($date))->days / 7) );
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.21, 8.5.0 - 8.5.7
1

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98.95 ms | 1246 KiB | 4 Q