3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(0x0-1);
based on JCBiD
Output for 4.3.0 - 5.2.17, 5.3.11 - 7.1.0
int(-1)
Output for 5.3.0 - 5.3.10
int(-2)