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<?php class Foo { function add_function($name, $function) { $this->$name = $function; } function call($name) { call_user_func($this->$name); } } $foo = new Foo(); $foo->add_function('bar', function() { echo "hello, world"; }); $foo->call($bar);
Output for 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Deprecated: Creation of dynamic property Foo::$bar is deprecated in /in/FIPmU on line 4 Warning: Undefined variable $bar in /in/FIPmU on line 14 Warning: Undefined property: Foo::$ in /in/FIPmU on line 8 Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, no array or string given in /in/FIPmU:8 Stack trace: #0 /in/FIPmU(14): Foo->call(NULL) #1 {main} thrown in /in/FIPmU on line 8
Process exited with code 255.
Output for 8.0.10 - 8.0.30, 8.1.0 - 8.1.27
Warning: Undefined variable $bar in /in/FIPmU on line 14 Warning: Undefined property: Foo::$ in /in/FIPmU on line 8 Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, no array or string given in /in/FIPmU:8 Stack trace: #0 /in/FIPmU(14): Foo->call(NULL) #1 {main} thrown in /in/FIPmU on line 8
Process exited with code 255.
Output for 8.0.0 - 8.0.9
Warning: Undefined variable $bar in /in/FIPmU on line 14 Warning: Undefined property: Foo::$ in /in/FIPmU on line 8 Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($function) must be a valid callback, no array or string given in /in/FIPmU:8 Stack trace: #0 /in/FIPmU(14): Foo->call(NULL) #1 {main} thrown in /in/FIPmU on line 8
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: bar in /in/FIPmU on line 14 Notice: Undefined property: Foo::$ in /in/FIPmU on line 8 Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/FIPmU on line 8
Output for 7.3.32 - 7.3.33
Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/FIPmU on line 8
Output for 7.0.0 - 7.0.20
Notice: Undefined variable: bar in /in/FIPmU on line 14 Fatal error: Uncaught Error: Cannot access empty property in /in/FIPmU:8 Stack trace: #0 /in/FIPmU(14): Foo->call(NULL) #1 {main} thrown in /in/FIPmU on line 8
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.21
Notice: Undefined variable: bar in /in/FIPmU on line 14 Fatal error: Cannot access empty property in /in/FIPmU on line 8
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
Parse error: syntax error, unexpected T_FUNCTION in /in/FIPmU on line 13
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_FUNCTION in /in/FIPmU on line 13
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/FIPmU on line 13
Process exited with code 255.

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