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<?php $dt = new DateTime('2014-01-02 04:02:58'); $dt->add(new DateInterval('PT2H')); echo $dt->format('Y-m-d H:i:s') . "\n"; $dt->add(new DateInterval('P2H')); echo $dt->format('Y-m-d H:i:s');
Output for 8.3.0 - 8.3.6
2014-01-02 06:02:58 Fatal error: Uncaught DateMalformedIntervalStringException: Unknown or bad format (P2H) in /in/7aUq6:5 Stack trace: #0 /in/7aUq6(5): DateInterval->__construct('P2H') #1 {main} thrown in /in/7aUq6 on line 5
Process exited with code 255.
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
2014-01-02 06:02:58 Fatal error: Uncaught Exception: Unknown or bad format (P2H) in /in/7aUq6:5 Stack trace: #0 /in/7aUq6(5): DateInterval->__construct('P2H') #1 {main} thrown in /in/7aUq6 on line 5
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
2014-01-02 06:02:58 Fatal error: Uncaught Exception: DateInterval::__construct(): Unknown or bad format (P2H) in /in/7aUq6:5 Stack trace: #0 /in/7aUq6(5): DateInterval->__construct('P2H') #1 {main} thrown in /in/7aUq6 on line 5
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
2014-01-02 06:02:58 Fatal error: Uncaught exception 'Exception' with message 'DateInterval::__construct(): Unknown or bad format (P2H)' in /in/7aUq6:5 Stack trace: #0 /in/7aUq6(5): DateInterval->__construct('P2H') #1 {main} thrown in /in/7aUq6 on line 5
Process exited with code 255.

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