3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php namespace A { namespace B { print __NAMESPACE__; } }
based on N46qN
Output for 5.6.0 - 5.6.30, 7.0.0 - 7.1.8
Fatal error: Namespace declarations cannot be nested in /in/ek6aj on line 3
Process exited with code 255.
Output for hhvm-3.18.4 - 3.21.0
A\B