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<?php class Test { function a() { $this->b = 'c'; echo $this->b; } static function r() { self::a(); } } Test::r();
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: Uncaught Error: Non-static method Test::a() cannot be called statically in /in/63cuD:9 Stack trace: #0 /in/63cuD(13): Test::r() #1 {main} thrown in /in/63cuD on line 9
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 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: Non-static method Test::a() should not be called statically in /in/63cuD on line 9 Fatal error: Uncaught Error: Using $this when not in object context in /in/63cuD:4 Stack trace: #0 /in/63cuD(9): Test::a() #1 /in/63cuD(13): Test::r() #2 {main} thrown in /in/63cuD on line 4
Process exited with code 255.
Output for 7.3.32 - 7.3.33
Fatal error: Uncaught Error: Using $this when not in object context in /in/63cuD:4 Stack trace: #0 /in/63cuD(9): Test::a() #1 /in/63cuD(13): Test::r() #2 {main} thrown in /in/63cuD on line 4
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Strict Standards: Non-static method Test::a() should not be called statically in /in/63cuD on line 9 Fatal error: Using $this when not in object context in /in/63cuD on line 4
Process exited with code 255.

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