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<?php function getStartOfWeekDate($date = null) { if ($date instanceof \DateTime) { $date = clone $date; } else if (!$date) { $date = new \DateTime(); } else { $date = new \DateTime($date); } $date->setTime(0, 0, 0); if ($date->format('N') == 1) { // If the date is already a Monday, return it as-is return $date; } else { // Otherwise, return the date of the nearest Monday in the past // This includes Sunday in the previous week instead of it being the start of a new week return $date->modify('last monday'); } } echo getStartOfWeekDate(new \DateTime('2020-12-06'))->format('Y-m-d');
Output for git.master, git.master_jit, rfc.property-hooks
2020-11-30

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