3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $blah = mb_strlen(array()); var_dump($blah);
Output for 7.0.0 - 7.2.0
Warning: mb_strlen() expects parameter 1 to be string, array given in /in/8v2IC on line 3 NULL
Output for 5.3.21 - 5.6.28
Warning: mb_strlen() expects parameter 1 to be string, array given in /in/8v2IC on line 3 bool(false)