3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $locale = 'it'; list(,$language) = explode('_', strtolower(str_replace('-', '_', $locale))); var_dump($language);
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined offset: 1 in /in/SMpPu on line 3 NULL
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined index: 1 in /in/SMpPu on line 3 NULL
Output for 4.3.0 - 5.2.17
Notice: Undefined offset: 1 in /in/SMpPu on line 3 NULL