3v4l.org

run code in 300+ PHP versions simultaneously
<?php $monday = date('Y-m-d H:i', strtotime( 'saturday this week 00:00' )); $friday = date( 'Y-m-d', strtotime( 'friday this week' ) ); echo $monday;
Output for 7.0.20, 7.1.5 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
2015-11-07 00:00
Output for 5.6.23 - 5.6.28, 7.0.8 - 7.0.9, 7.1.0
2015-11-02 00:00
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.22, 7.0.0 - 7.0.7
2015-11-14 00:00
preferences:
186.72 ms | 402 KiB | 236 Q