3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo trim(null)==='';
Output for 5.6.0 - 5.6.30, 7.0.0 - 7.2.6
1
Output for hhvm-3.15.4
Warning: trim() expects parameter 1 to be string, null given in /in/klmYH on line 3