3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $start = new DateTimeImmutable('2013-01-31'); $current = $start->modify("next month"); echo $current->format('n');
Output for 5.5.0 - 7.1.0
3
Output for 5.0.0 - 5.4.45
Fatal error: Class 'DateTimeImmutable' not found in /in/JFV3a on line 4
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: datetimeimmutable in /in/JFV3a on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: datetimeimmutable in /in/JFV3a on line 4