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<?php $ts = strtotime('2010-01-31 +1 month'); echo date('Y-m-d', $ts); $dt = new \DateTime('2010-01-31'); $dt->add('P1M'); echo $dt->format('Y-m-d');
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
2010-03-03 Fatal error: Uncaught TypeError: DateTime::add(): Argument #1 ($interval) must be of type DateInterval, string given in /in/2goFX:6 Stack trace: #0 /in/2goFX(6): DateTime->add('P1M') #1 {main} thrown in /in/2goFX on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
2010-03-03 Warning: DateTime::add() expects parameter 1 to be DateInterval, string given in /in/2goFX on line 6 2010-01-31
Output for 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/2goFX on line 5 2010-03-03 Fatal error: Call to undefined method DateTime::add() in /in/2goFX on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/2goFX on line 5 2010-03-03 Fatal error: Class 'DateTime' not found in /in/2goFX on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/2goFX on line 5 2010-03-03 Fatal error: Cannot instantiate non-existent class: datetime in /in/2goFX on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/2goFX on line 5 2010-03-03 Fatal error: Cannot instantiate non-existent class: datetime in /in/2goFX on line 5

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