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<?php $year = 2015; $week = 46; $dto = new DateTime(); $dto-> setISODate($year, $week); $ret['week_start'] = $dto->format('Y-m-d'); $dto->modify('+6 days'); $ret['week_end'] = $dto->format('Y-m-d'); echo $ret[week_start];
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Undefined constant "week_start" in /in/LPngl:10 Stack trace: #0 {main} thrown in /in/LPngl on line 10
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant week_start - assumed 'week_start' (this will throw an Error in a future version of PHP) in /in/LPngl on line 10 2015-11-09
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
Notice: Use of undefined constant week_start - assumed 'week_start' in /in/LPngl on line 10 2015-11-09

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