3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $int = 123; if(!filter_var($int, FILTER_VALIDATE_INT)) { echo("Integer is not valid"); } else { echo("Integer is valid"); } ?>
based on ITOp6
Output for 5.2.0 - 7.1.0
Integer is valid
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function filter_var() in /in/P4P2Y on line 4
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: filter_var() in /in/P4P2Y on line 4
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: filter_var() in /in/P4P2Y on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: filter_var() in /in/P4P2Y on line 4