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<?php class A { function foo() { var_dump($this); } } class B extends A { function bar() { A::foo(); $cb = ["A","foo"]; $cb(); $cb = "A::foo"; $cb(); } } $b = new B(); $b->bar();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
object(B)#1 (0) { } Fatal error: Uncaught Error: Non-static method A::foo() cannot be called statically in /in/qdmNK:11 Stack trace: #0 /in/qdmNK(17): B->bar() #1 {main} thrown in /in/qdmNK on line 11
Process exited with code 255.
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
object(B)#1 (0) { } Deprecated: Non-static method A::foo() should not be called statically in /in/qdmNK on line 11 Fatal error: Uncaught Error: Using $this when not in object context in /in/qdmNK:4 Stack trace: #0 /in/qdmNK(11): A::foo() #1 /in/qdmNK(17): B->bar() #2 {main} thrown in /in/qdmNK on line 4
Process exited with code 255.
Output for 7.3.32 - 7.3.33
object(B)#1 (0) { } Fatal error: Uncaught Error: Using $this when not in object context in /in/qdmNK:4 Stack trace: #0 /in/qdmNK(11): A::foo() #1 /in/qdmNK(17): B->bar() #2 {main} thrown in /in/qdmNK on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.20
object(B)#1 (0) { } Deprecated: Non-static method A::foo() should not be called statically in /in/qdmNK on line 11 Notice: Undefined variable: this in /in/qdmNK on line 4 NULL Deprecated: Non-static method A::foo() should not be called statically in /in/qdmNK on line 13 Notice: Undefined variable: this in /in/qdmNK on line 4 NULL
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
object(B)#1 (0) { } Strict Standards: Non-static method A::foo() should not be called statically in /in/qdmNK on line 11 Notice: Undefined variable: this in /in/qdmNK on line 4 NULL Fatal error: Call to undefined function A::foo() in /in/qdmNK on line 13
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 '[' in /in/qdmNK on line 10
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 '[' in /in/qdmNK on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/qdmNK on line 10
Process exited with code 255.

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