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<?php $year = '2015'; $date = '01/01/' . $year; $wk_baseline = date('w', strtotime($date)) - 1; $wkdate = '01/04/2015'; $week = ceil(max(date('z', strtotime($wkdate)) + 1 - $wk_baseline,0) / 7); echo $week; ?>
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
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preferences:
273.67 ms | 404 KiB | 376 Q