3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo strtotime("-{$days} days");
Output for 5.1.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Notice: Undefined variable: days in /in/rkG69 on line 2
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.0.4 - 5.0.5
Notice: Undefined variable: days in /in/rkG69 on line 2 1413314455
Output for 4.3.1 - 4.4.9, 5.0.3
Notice: Undefined variable: days in /in/rkG69 on line 2 1413314455
Output for 5.0.0 - 5.0.2
Notice: Undefined variable: days in /in/rkG69 on line 2 1413237600
Output for 4.3.0
Notice: Undefined variable: days in /in/rkG69 on line 2 1442840409