Online PHP editor | output for EZiqk

Output for 8.5.0 - 8.5.3: Fatal error: Declaration of Bar::test(array $x, $y) must be compatible with Foo::test(array $x, $y = 0) in /in/EZiqk on line 10 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 Bar::test(array $x, $y) must be compatible with Foo::test(array $x, $y = 0) in /in/EZiqk on line 10
Process exited with code 255.
Output for 7.4.0 - 7.4.33: Warning: Declaration of Bar::test(array $x, $y) should be compatible with Foo::test(array $x, $y = 0) in /in/EZiqk on line 10
Output for 7.0.0 - 7.0.29, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33: Fatal error: Declaration of Bar::test(array $x, $y) must be compatible with Foo::test(array $x, $y = 0) in /in/EZiqk on line 15
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 Bar::test() must be compatible with Foo::test(array $x, $y = 0) in /in/EZiqk on line 15
Process exited with code 255.
Output for 5.3.9 - 5.3.29: Fatal error: Declaration of Bar::test() must be compatible with that of Foo::test() in /in/EZiqk on line 15
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.8: Fatal error: Can't inherit abstract function Foo::test() (previously declared abstract in Bar) in /in/EZiqk on line 15
Process exited with code 255.
Output for 5.0.0 - 5.0.5: Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/EZiqk on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected T_STRING in /in/EZiqk 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/EZiqk on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/EZiqk on line 3
Process exited with code 255.