3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $val = " "; echo "Null? ".(is_string($val) ? strlen(trim($val)) : is_null($val));
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Null? 0
Output for hhvm-3.10.0

Process exited with code 153.