3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $lundi = strtotime('last monday'); $numWeekM6 = strftime('%U', strtotime('+4 week', $lundi)); echo $lundi; echo ' - '; echo $numWeekM6;
Output for 5.6.28, 7.0.14 - 7.1.0
1385938800 - 52
Output for 7.0.6
1462140000 - 22
Output for 5.5.30, 5.6.14, hhvm-3.10.0 - 3.12.0, 7.0.5
1459116000 - 17
Output for 5.5.33, 5.6.18, 7.0.4
1457305200 - 14
Output for 5.5.31 - 5.5.32, 5.6.17, 7.0.2 - 7.0.3
1457910000 - 15
Output for 5.6.15 - 5.6.16, 7.0.0 - 7.0.1
1458514800 - 16
Output for 5.5.24 - 5.5.25, 5.6.8 - 5.6.9, 5.6.21
1461535200 - 21
Output for 5.5.34, 5.6.20
1459720800 - 18
Output for 5.6.19
1456700400 - 13
Output for 5.5.29, 5.6.13
1460325600 - 19
Output for 5.5.26 - 5.5.28, 5.6.10 - 5.6.12
1460930400 - 20
Output for 5.6.7
1463954400 - 25
Output for 5.5.35
1463349600 - 24
Output for 4.3.0 - 5.4.45
1447628400 - 50