3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo trim(null);
Output for 4.3.0 - 5.6.30, hhvm-3.10.1, hhvm-3.20.2 - 3.22.0, 7.0.0 - 7.2.1
Output for hhvm-3.11.1 - 3.19.2
Warning: trim() expects parameter 1 to be string, null given in /in/jtF36 on line 3