<?php function getFirstWeekOfYear(\DateTime $date = null) { if(!$date){ $date = new \DateTime(); } return (new \DateTime())->setISODate((int)$date->format('o'), 1, $date->format('w')); } echo getFirstWeekOfYear(new \DateTime('2015-03-18'))->format('Y-m-d');
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Value for `_results` contains invalid data `array`