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<?php interface Type {} class SomeType implements Type {} abstract class TypeUser { public function __construct(Type $type) {} public function test(Type $type) {} } class SomeTypeUser extends TypeUser { public function __construct(SomeType $type) {} public function test(SomeType $type) {} } $type = new SomeType(); $obj = (new SomeTypeUser($type))->test($type);
Output for 8.5.0 - 8.5.3
Fatal error: Declaration of SomeTypeUser::test(SomeType $type) must be compatible with TypeUser::test(Type $type) in /in/hCQTe on line 16 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 SomeTypeUser::test(SomeType $type) must be compatible with TypeUser::test(Type $type) in /in/hCQTe on line 16
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Warning: Declaration of SomeTypeUser::test(SomeType $type) should be compatible with TypeUser::test(Type $type) in /in/hCQTe on line 16
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33
Warning: Declaration of SomeTypeUser::test(SomeType $type) should be compatible with TypeUser::test(Type $type) in /in/hCQTe on line 17
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Strict Standards: Declaration of SomeTypeUser::test() should be compatible with TypeUser::test(Type $type) in /in/hCQTe on line 17
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Strict Standards: Declaration of SomeTypeUser::test() should be compatible with that of TypeUser::test() in /in/hCQTe on line 17 Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/hCQTe on line 20
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Strict Standards: Declaration of SomeTypeUser::test() should be compatible with that of TypeUser::test() in /in/hCQTe on line 17 Parse error: parse error, unexpected T_OBJECT_OPERATOR in /in/hCQTe on line 20
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/hCQTe on line 2
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
Parse error: parse error, unexpected T_STRING in /in/hCQTe on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/hCQTe on line 2
Process exited with code 255.

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