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<?php class a { public function x(){ b::flerp(); } } class b { protected static $abc; public function flerp() { self::$abc = 1; } public function abc(){ echo self::$abc; } } $a = new a; $a->x(); $b = new b; $b->abc();
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 b::flerp() cannot be called statically in /in/IZMnq:3 Stack trace: #0 /in/IZMnq(8): a->x() #1 {main} thrown in /in/IZMnq on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Deprecated: Non-static method b::flerp() should not be called statically in /in/IZMnq on line 3 1
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.2, 7.3.32 - 7.3.33, 7.4.26
1
Output for 5.6.0 - 5.6.28
Deprecated: Non-static method b::flerp() should not be called statically, assuming $this from incompatible context in /in/IZMnq on line 3 1
Output for 5.1.3 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.36
Strict Standards: Non-static method b::flerp() should not be called statically, assuming $this from incompatible context in /in/IZMnq on line 3 1
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/IZMnq on line 3
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/IZMnq on line 3
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/IZMnq on line 3
Process exited with code 255.

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