3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function daysInWeek($weekNum) { $result = array(); $datetime = new DateTime('00:00:00'); $datetime->setISODate((int)$datetime->format('o'), $weekNum, 1); $interval = new DateInterval('P1D'); $week = new DatePeriod($datetime, $interval, 7); foreach($week as $day){ $result[] = $day->format('D d m Y H:i:s'); } return $result; } var_dump(daysInWeek(24)); //and the difficult ones:- var_dump(daysInWeek(1)); var_dump(daysInWeek(53));
based on HqSEv
Output for 5.3.0 - 5.6.38, hhvm-3.10.1 - 3.22.0, 7.0.0 - 7.3.0
array(8) { [0]=> string(23) "Mon 11 06 2018 00:00:00" [1]=> string(23) "Tue 12 06 2018 00:00:00" [2]=> string(23) "Wed 13 06 2018 00:00:00" [3]=> string(23) "Thu 14 06 2018 00:00:00" [4]=> string(23) "Fri 15 06 2018 00:00:00" [5]=> string(23) "Sat 16 06 2018 00:00:00" [6]=> string(23) "Sun 17 06 2018 00:00:00" [7]=> string(23) "Mon 18 06 2018 00:00:00" } array(8) { [0]=> string(23) "Mon 01 01 2018 00:00:00" [1]=> string(23) "Tue 02 01 2018 00:00:00" [2]=> string(23) "Wed 03 01 2018 00:00:00" [3]=> string(23) "Thu 04 01 2018 00:00:00" [4]=> string(23) "Fri 05 01 2018 00:00:00" [5]=> string(23) "Sat 06 01 2018 00:00:00" [6]=> string(23) "Sun 07 01 2018 00:00:00" [7]=> string(23) "Mon 08 01 2018 00:00:00" } array(8) { [0]=> string(23) "Mon 31 12 2018 00:00:00" [1]=> string(23) "Tue 01 01 2019 00:00:00" [2]=> string(23) "Wed 02 01 2019 00:00:00" [3]=> string(23) "Thu 03 01 2019 00:00:00" [4]=> string(23) "Fri 04 01 2019 00:00:00" [5]=> string(23) "Sat 05 01 2019 00:00:00" [6]=> string(23) "Sun 06 01 2019 00:00:00" [7]=> string(23) "Mon 07 01 2019 00:00:00" }
Output for 5.2.0 - 5.2.17
Fatal error: Class 'DateInterval' not found in /in/6nH9P on line 7
Process exited with code 255.
Output for 5.0.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/6nH9P on line 5
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: datetime in /in/6nH9P on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: datetime in /in/6nH9P on line 5