3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo substr(0,6,'test substr dsfdsf sd');
Output for 7.0.0 - 7.2.6
Warning: substr() expects parameter 3 to be integer, string given in /in/SmWPB on line 2
Output for 5.3.0 - 5.6.28
Warning: substr() expects parameter 3 to be long, string given in /in/SmWPB on line 2
Output for 4.3.0 - 5.2.17