3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface X { function method(A $a); } interface Y { function method(B $a); } class Z implements X, Y { function method(B $a){} }
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Fatal error: Could not check compatibility between Z::method(B $a) and X::method(A $a), because class A is not available in /in/hBiFA on line 13
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 Z::method(B $a) must be compatible with X::method(A $a) in /in/hBiFA on line 12
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Declaration of Z::method() must be compatible with X::method(A $a) in /in/hBiFA on line 12
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Fatal error: Declaration of Z::method() must be compatible with that of X::method() in /in/hBiFA on line 12
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/hBiFA 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
Parse error: parse error, unexpected T_STRING in /in/hBiFA on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/hBiFA on line 3
Process exited with code 255.
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