3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $test = NULL; echo is_null(unserialize($test));
based on gT77B
Output for 5.2.0 - 7.2.0
Output for 4.3.10 - 4.4.9, 5.0.3 - 5.1.6
Notice: unserialize(): Argument is not a string in /in/eMre3 on line 5
Output for 4.3.2 - 4.3.9, 5.0.0 - 5.0.2
Notice: unserialize(): Argument is not an string in /in/eMre3 on line 5
Output for 4.3.0 - 4.3.1
Notice: unserialize() [http://www.php.net/function.unserialize]: Argument is not an string in /in/eMre3 on line 5