3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class CbMan { public function fn(callable $cb) { echo $cb(); } } class Pippo { public function yah() { return "hello world"; } } $methods = ['yah']; $aa = function($instance, $methods) { return call_user_func($instance, $methods); }; $instance = new Pippo(); $cb = $aa($instance, $methods); $cbman = new CbMan(); $cbman->fn($cb);
based on 8QDht
Output for 7.0.0 - 7.2.0
Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/W1qpb on line 21 Fatal error: Uncaught TypeError: Argument 1 passed to CbMan::fn() must be callable, null given, called in /in/W1qpb on line 27 and defined in /in/W1qpb:5 Stack trace: #0 /in/W1qpb(27): CbMan->fn(NULL) #1 {main} thrown in /in/W1qpb on line 5
Process exited with code 255.
Output for 5.4.0 - 5.6.28
Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/W1qpb on line 21 Catchable fatal error: Argument 1 passed to CbMan::fn() must be callable, null given, called in /in/W1qpb on line 27 and defined in /in/W1qpb on line 5
Process exited with code 255.
Output for 5.3.19 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/W1qpb on line 19
Process exited with code 255.