3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo ip2long("255.255.255.255");
Output for 4.3.0 - 4.3.4, 5.2.5 - 7.2.0
4294967295
Output for 4.3.5 - 4.4.9, 5.0.2 - 5.2.4
-1
Output for 5.0.0 - 5.0.1