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<?php class A { function f() { echo get_class($this); } function x() { echo A::f(); } } class B { function f() { A::f(); } } (new B)->f(); (new A)->x();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Non-static method A::f() cannot be called statically in /in/GJ7av:8 Stack trace: #0 /in/GJ7av(11): B->f() #1 {main} thrown in /in/GJ7av on line 8
Process exited with code 255.
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Deprecated: Non-static method A::f() should not be called statically in /in/GJ7av on line 8 Fatal error: Uncaught Error: Using $this when not in object context in /in/GJ7av:3 Stack trace: #0 /in/GJ7av(8): A::f() #1 /in/GJ7av(11): B->f() #2 {main} thrown in /in/GJ7av on line 3
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 7.4.26
Fatal error: Uncaught Error: Using $this when not in object context in /in/GJ7av:3 Stack trace: #0 /in/GJ7av(8): A::f() #1 /in/GJ7av(11): B->f() #2 {main} thrown in /in/GJ7av on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.20
Deprecated: Non-static method A::f() should not be called statically in /in/GJ7av on line 8 Notice: Undefined variable: this in /in/GJ7av on line 3 AA
Output for 5.6.0 - 5.6.28
Deprecated: Non-static method A::f() should not be called statically, assuming $this from incompatible context in /in/GJ7av on line 8 BA
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
Strict Standards: Non-static method A::f() should not be called statically, assuming $this from incompatible context in /in/GJ7av on line 8 BA
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_OBJECT_OPERATOR in /in/GJ7av on line 11
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_OBJECT_OPERATOR in /in/GJ7av on line 11
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/GJ7av on line 11
Process exited with code 255.

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