3v4l.org

run code in 300+ PHP versions simultaneously

sponsor
bughunt
search
recent
about

@ 2017-05-02T02:09:28Z

<?php
    namespace Foo;
    call_user_func(function (array &$ref) {}, 'not_an_array_variable');

Output
Performance
VLD
References
Branches

call_user_func: documentation ( source)

preferences:dark modelive previewkey bindings

24.6 ms | 404 KiB | 5 Q