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<?php class foo { function bar() { echo 'OHAI'; } } $callable = 'foo::bar'; call_user_func($callable); $callable();
Output for 8.0.10 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, non-static method foo::bar() cannot be called statically in /in/JMirq:11 Stack trace: #0 {main} thrown in /in/JMirq on line 11
Process exited with code 255.
Output for 8.0.0 - 8.0.9
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($function) must be a valid callback, non-static method foo::bar() cannot be called statically in /in/JMirq:11 Stack trace: #0 {main} thrown in /in/JMirq on line 11
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 foo::bar() should not be called statically in /in/JMirq on line 11 OHAI Deprecated: Non-static method foo::bar() should not be called statically in /in/JMirq on line 12 OHAI
Output for 7.3.32 - 7.3.33
OHAIOHAI
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Strict Standards: call_user_func() expects parameter 1 to be a valid callback, non-static method foo::bar() should not be called statically in /in/JMirq on line 11 OHAI Fatal error: Call to undefined function foo::bar() in /in/JMirq on line 12
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Warning: call_user_func(foo::bar): First argument is expected to be a valid callback in /in/JMirq on line 11 Fatal error: Call to undefined function foo::bar() in /in/JMirq on line 12
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Warning: call_user_func(foo::bar): First argument is expected to be a valid callback in /in/JMirq on line 11 Fatal error: Call to undefined function: foo::bar() in /in/JMirq on line 12
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Warning: call_user_func(foo::bar): First argument is expected to be a valid callback in /in/JMirq on line 11 Fatal error: Call to undefined function: foo::bar() in /in/JMirq on line 12
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Warning: call_user_func(foo::bar) [http://www.php.net/function.call-user-func]: First argument is expected to be a valid callback in /in/JMirq on line 11 Fatal error: Call to undefined function: foo::bar() in /in/JMirq on line 12

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