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<?php $str = '11am-3pm'; list($begin, $end) = explode('-', $str); $begin = new DateTime($begin); $end = new DateTime($end); $end = $end->modify('+1 hour'); $interval = new DateInterval('PT1H'); $daterange = new DatePeriod($begin, $interval, $end); $result = array_map(fn($d) => $d->format('ga'), iterator_to_array($daterange)); print_r($result);

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24.37 ms | 407 KiB | 5 Q