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<?php class foo { function baz() { return __CLASS__; } } class bar { function baz() { return __CLASS__; } } $call = [new bar, "parent::baz"]; call_user_func($call);
Output for 8.0.10 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, cannot access "parent" when current class scope has no parent in /in/t03sQ:16 Stack trace: #0 {main} thrown in /in/t03sQ on line 16
Process exited with code 255.
Output for 8.0.0 - 8.0.9
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($function) must be a valid callback, cannot access "parent" when current class scope has no parent in /in/t03sQ:16 Stack trace: #0 {main} thrown in /in/t03sQ on line 16
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: call_user_func() expects parameter 1 to be a valid callback, cannot access parent:: when current class scope has no parent in /in/t03sQ on line 16
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/t03sQ on line 15
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, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/t03sQ on line 15
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/t03sQ on line 15
Process exited with code 255.

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