Online PHP editor | output for rckmO

Output for 5.5.4 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 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: 2011-12-01 2012-02-01 2012-01-01 2012-03-01 2012-02-01 2012-04-01 2012-03-01 2012-05-01 2012-04-01 2012-06-01 2012-05-01 2012-07-01 2012-06-01 2012-08-01 2012-07-01 2012-09-01 2012-08-01 2012-10-01 2012-09-01 2012-11-01 2012-10-01 2012-12-01 2012-11-01 2013-01-01 2012-12-01 2013-02-01 2013-01-01 2013-03-01 2013-02-01 2013-04-01 2013-03-01 2013-05-01 2013-04-01 2013-06-01 2013-05-01 2013-07-01 2013-06-01 2013-08-01 2013-07-01 2013-09-01 2013-08-01 2013-10-01 2013-09-01 2013-11-01 2013-10-01 2013-12-01 2013-11-01 2014-01-01 2013-12-01 2014-02-01 2014-01-01 2014-03-01 2014-02-01 2014-04-01 2014-03-01 2014-05-01 2014-04-01 2014-06-01 2014-05-01 2014-07-01 2014-06-01 2014-08-01 2014-07-01 2014-09-01 2014-08-01 2014-10-01 2014-09-01 2014-11-01 2014-10-01 2014-12-01 2014-11-01 2015-01-01
Output for 5.5.0 - 5.5.3
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45: Fatal error: Class 'DateTimeImmutable' not found in /in/rckmO on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/rckmO on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1: Parse error: parse error, unexpected T_OBJECT_OPERATOR in /in/rckmO on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/rckmO on line 5
Process exited with code 255.