3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(strlen(trim(null)));
based on 5e1Ib
Output for 4.3.0 - 5.6.28, hhvm-3.10.0, 7.0.0 - 7.1.0
int(0)
Output for hhvm-3.12.0 - 3.13.2
Warning: trim() expects parameter 1 to be string, null given in /in/Icu9W on line 3 int(0)