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<?php interface AAA {} interface BBB extends AAA{ function method($x); } interface CCC extends BBB{ function method($x, $y = null); } abstract class AAA_ implements AAA{} abstract class BBB_ extends AAA_ implements BBB{} abstract class CCC_ extends BBB_ implements CCC{}
Output for 8.5.0 - 8.5.3
Fatal error: Declaration of BBB::method($x) must be compatible with CCC::method($x, $y = null) in /in/YaXVN on line 7 Stack trace: #0 {main}
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18
Fatal error: Declaration of BBB::method($x) must be compatible with CCC::method($x, $y = null) in /in/YaXVN on line 7
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Fatal error: Declaration of BBB::method($x) must be compatible with CCC::method($x, $y = NULL) in /in/YaXVN on line 7
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Fatal error: Declaration of BBB::method($x) must be compatible with CCC::method($x, $y = NULL) in /in/YaXVN on line 16
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Declaration of BBB::method() must be compatible with CCC::method($x, $y = NULL) in /in/YaXVN on line 16
Process exited with code 255.

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