3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $tz=new DateTimeZone('UTC'); $date = new DateTime('2000-12-31', $tz); $date->add(new DateInterval('P1M', $tz)); var_dump($date->format('Y-m-d')); $date->add(new DateInterval('P1M', $tz)); var_dump($date->format('Y-m-d'));
based on 29Y3P
Output for 7.1.0
Fatal error: Uncaught ArgumentCountError: DateInterval::__construct() expects exactly 1 parameter, 2 given in /in/XqL9Z:6 Stack trace: #0 /in/XqL9Z(6): DateInterval->__construct('P1M', Object(DateTimeZone)) #1 {main} thrown in /in/XqL9Z on line 6
Process exited with code 255.
Output for 7.0.0 - 7.0.14
Fatal error: Uncaught TypeError: DateInterval::__construct() expects exactly 1 parameter, 2 given in /in/XqL9Z:6 Stack trace: #0 /in/XqL9Z(6): DateInterval->__construct('P1M', Object(DateTimeZone)) #1 {main} thrown in /in/XqL9Z on line 6
Process exited with code 255.
Output for hhvm-3.12.0
Fatal error: Uncaught exception 'Exception' with message 'DateInterval::__construct() expects exactly 1 parameter, 2 given' in /in/XqL9Z:6 Stack trace: #0 /in/XqL9Z(6): DateInterval->__construct() #1 {main}
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.0 - 5.6.28
Fatal error: Uncaught exception 'Exception' with message 'DateInterval::__construct() expects exactly 1 parameter, 2 given' in /in/XqL9Z:6 Stack trace: #0 /in/XqL9Z(6): DateInterval->__construct('P1M', Object(DateTimeZone)) #1 {main} thrown in /in/XqL9Z on line 6
Process exited with code 255.
Output for 5.2.0 - 5.2.17
Fatal error: Call to undefined method DateTime::add() in /in/XqL9Z on line 6
Process exited with code 255.
Output for 5.0.0 - 5.1.6
Fatal error: Class 'DateTimeZone' not found in /in/XqL9Z on line 2
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: datetimezone in /in/XqL9Z on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: datetimezone in /in/XqL9Z on line 2