3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace foo { class Xyz {} function abc () {} } namespace bar { use foo\Xyz; use foo\abc; function abc() { return 'asdf'; } var_dump(new Xyz()); // instantiates \foo\Xyz var_dump(abc()); var_dump(\foo\abc()); // it has to be invoked using the fully qualified name } ?>

preferences:
43.75 ms | 402 KiB | 5 Q