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<?php trait FooTrait { public static function foo() { var_dump(static::BAR); } } class Baz { #const BAR = 42; use FooTrait; } Baz::foo();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: Uncaught Error: Undefined constant Baz::BAR in /in/M4l7K:4 Stack trace: #0 /in/M4l7K(13): Baz::foo() #1 {main} thrown in /in/M4l7K on line 4
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, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Undefined class constant 'BAR' in /in/M4l7K:4 Stack trace: #0 /in/M4l7K(13): Baz::foo() #1 {main} thrown in /in/M4l7K on line 4
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
Fatal error: Undefined class constant 'BAR' in /in/M4l7K on line 4
Process exited with code 255.
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 T_STRING in /in/M4l7K on line 2
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 T_STRING in /in/M4l7K on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/M4l7K on line 2
Process exited with code 255.

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