3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo strtotime('2015-01-01').' '.strtotime('+6 months', date('Y-m-01'));
Output for 5.1.0 - 5.6.25, hhvm-3.12.0, 7.0.0 - 7.1.0
Notice: A non well formed numeric value encountered in /in/mB7W7 on line 3 1420066800 15640414
Output for 4.3.0 - 4.4.9, 5.0.3 - 5.0.5, hhvm-3.10.0
1420066800 15640414
Output for 5.0.0 - 5.0.2
1420066800 15634800