3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $start = '@'; $end = '@'; $text = 'newtext!234@@random_text@@weludud'; $replace = 'test'; $msg = preg_replace('#('.$start.')(.*)('.$end.')#si', "$1 $replace $3", $text); echo $msg;
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
newtext!234@ test @weludud
Output for hhvm-3.10.0

Process exited with code 153.