3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $year = 2013; $week = 25; $Jan1 = mktime(0, 0, 0, 1, 1, $year); $MondayOffset = (11 - date('w', $Jan1)) % 7 - 3; $desiredMonday = strtotime(($week - 1) . ' weeks ' . $MondayOffset . ' days', $Jan1); $desiredSunday = strtotime('+0 week 0 days 1 hour', $desiredMonday); var_dump( $desiredMonday, $desiredSunday );
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
int(1371420000) int(1371423600)