3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(STDOUT);
Output for 5.2.3 - 5.6.30, hhvm-3.10.1 - 3.21.0, 7.0.0 - 7.1.8
resource(2) of type (stream)
Output for 4.3.0 - 5.2.2
Notice: Use of undefined constant STDOUT - assumed 'STDOUT' in /in/IIXLr on line 3 string(6) "STDOUT"