3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $inf = pow(0,-2); var_dump($inf==$inf); var_dump($inf===$inf);
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
bool(true) bool(true)
Output for 4.3.0 - 5.3.29
bool(false) bool(true)