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<?php trait T1 { function a1() { return $this->var; } } trait T2 { use T1; function a2() { return T1::a1(); } } class A { use T2; protected $var = 3; } $a = new A; echo $a->a2();
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Calling static trait method T1::a1 is deprecated, it should only be called on a class using the trait in /in/PQK4g on line 11 Fatal error: Uncaught Error: Non-static method T1::a1() cannot be called statically in /in/PQK4g:11 Stack trace: #0 /in/PQK4g(20): A->a2() #1 {main} thrown in /in/PQK4g on line 11
Process exited with code 255.
Output for 8.0.0 - 8.0.30
Fatal error: Uncaught Error: Non-static method T1::a1() cannot be called statically in /in/PQK4g:11 Stack trace: #0 /in/PQK4g(20): A->a2() #1 {main} thrown in /in/PQK4g on line 11
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: Non-static method T1::a1() should not be called statically in /in/PQK4g on line 11 Fatal error: Uncaught Error: Using $this when not in object context in /in/PQK4g:5 Stack trace: #0 /in/PQK4g(11): T1::a1() #1 /in/PQK4g(20): A->a2() #2 {main} thrown in /in/PQK4g on line 5
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/PQK4g:5 Stack trace: #0 /in/PQK4g(11): T1::a1() #1 /in/PQK4g(20): A->a2() #2 {main} thrown in /in/PQK4g on line 5
Process exited with code 255.
Output for 5.6.0 - 5.6.30
Deprecated: Non-static method T1::a1() should not be called statically, assuming $this from incompatible context in /in/PQK4g on line 11 Fatal error: Cannot access protected property A::$var in /in/PQK4g on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
Strict Standards: Non-static method T1::a1() should not be called statically, assuming $this from incompatible context in /in/PQK4g on line 11 Fatal error: Cannot access protected property A::$var in /in/PQK4g on line 5
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/PQK4g 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, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/PQK4g on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/PQK4g on line 3
Process exited with code 255.

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