3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?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);
based on UXYTR
Output for 7.1.0
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 7.0.0 - 7.0.14
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 - 5.6.21, hhvm-3.10.0 - 3.12.0
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 - 5.2.17
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 - 4.4.1, 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.