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<?php class A { public static function __invoke() { echo __CLASS__; } } class B extends A { } $b = new B; $b();
Output for 8.0.0 - 8.0.22, 8.1.0 - 8.1.9
Fatal error: Method A::__invoke() cannot be static in /in/C9KDr on line 4
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.30
Warning: The magic method __invoke() must have public visibility and cannot be static in /in/C9KDr on line 4 A
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
A
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Fatal error: Function name must be a string in /in/C9KDr on line 15
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/C9KDr on line 4
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, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/C9KDr on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/C9KDr on line 4
Process exited with code 255.

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