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<?php $abc=4; $xyz = "p".$abc."D"; $dayAfterTomorrow = (new \DateTime())->add(new \DateInterval($xyz)); echo $dayAfterTomorrow->format('d m Y');
Output for 8.3.0 - 8.3.6
Fatal error: Uncaught DateMalformedIntervalStringException: Unknown or bad format (p4D) in /in/IErJb:4 Stack trace: #0 /in/IErJb(4): DateInterval->__construct('p4D') #1 {main} thrown in /in/IErJb on line 4
Process exited with code 255.
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Fatal error: Uncaught Exception: Unknown or bad format (p4D) in /in/IErJb:4 Stack trace: #0 /in/IErJb(4): DateInterval->__construct('p4D') #1 {main} thrown in /in/IErJb on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
Fatal error: Uncaught Exception: DateInterval::__construct(): Unknown or bad format (p4D) in /in/IErJb:4 Stack trace: #0 /in/IErJb(4): DateInterval->__construct('p4D') #1 {main} thrown in /in/IErJb on line 4
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Uncaught exception 'Exception' with message 'DateInterval::__construct(): Unknown or bad format (p4D)' in /in/IErJb:4 Stack trace: #0 /in/IErJb(4): DateInterval->__construct('p4D') #1 {main} thrown in /in/IErJb on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/IErJb on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/IErJb on line 4 Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/IErJb on line 4
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, 5.0.0 - 5.0.5
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/IErJb on line 4 Parse error: parse error, unexpected T_OBJECT_OPERATOR in /in/IErJb on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/IErJb on line 4 Parse error: parse error in /in/IErJb on line 4
Process exited with code 255.

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