3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(decbin(1<<64));
based on O1CRI
Output for 7.0.0 - 7.1.0
string(1) "0"
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0
string(1) "1"