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<?php var_dump((new ReflectionParameter(['DateInterval', '__construct'], 0))->isOptional()); var_dump(new DateInterval);
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
bool(false) Fatal error: Uncaught ArgumentCountError: DateInterval::__construct() expects exactly 1 argument, 0 given in /in/bjaT5:4 Stack trace: #0 /in/bjaT5(4): DateInterval->__construct() #1 {main} thrown in /in/bjaT5 on line 4
Process exited with code 255.
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
bool(false) Fatal error: Uncaught ArgumentCountError: DateInterval::__construct() expects exactly 1 parameter, 0 given in /in/bjaT5:4 Stack trace: #0 /in/bjaT5(4): DateInterval->__construct() #1 {main} thrown in /in/bjaT5 on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.20
bool(false) Fatal error: Uncaught TypeError: DateInterval::__construct() expects exactly 1 parameter, 0 given in /in/bjaT5:4 Stack trace: #0 /in/bjaT5(4): DateInterval->__construct() #1 {main} thrown in /in/bjaT5 on line 4
Process exited with code 255.
Output for 5.6.13 - 5.6.28
bool(false) Fatal error: Uncaught exception 'Exception' with message 'DateInterval::__construct() expects exactly 1 parameter, 0 given' in /in/bjaT5:4 Stack trace: #0 /in/bjaT5(4): DateInterval->__construct() #1 {main} thrown in /in/bjaT5 on line 4
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.12
bool(true) Fatal error: Uncaught exception 'Exception' with message 'DateInterval::__construct() expects exactly 1 parameter, 0 given' in /in/bjaT5:4 Stack trace: #0 /in/bjaT5(4): DateInterval->__construct() #1 {main} thrown in /in/bjaT5 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, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/bjaT5 on line 3
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
Parse error: parse error, unexpected '[', expecting ')' in /in/bjaT5 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/bjaT5 on line 3
Process exited with code 255.

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