3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x = substr_replace("tata","--",0,100); echo $x;
Output for 4.3.0 - 5.2.1, 5.2.4 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
--
Output for 5.2.2 - 5.2.3