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<?php interface inter { public function test($element, $params = null); } class cla implements inter { public function test($element) { } }
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
Fatal error: Declaration of cla::test($element) must be compatible with inter::test($element, $params = null) in /in/B7kKV on line 13
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Fatal error: Declaration of cla::test($element) must be compatible with inter::test($element, $params = NULL) in /in/B7kKV on line 13
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Fatal error: Declaration of cla::test($element) must be compatible with inter::test($element, $params = NULL) in /in/B7kKV on line 11
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30
Fatal error: Declaration of cla::test() must be compatible with inter::test($element, $params = NULL) in /in/B7kKV on line 11
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 cla::test() must be compatible with that of inter::test() in /in/B7kKV on line 11
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/B7kKV on line 5
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/B7kKV on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/B7kKV on line 5
Process exited with code 255.

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