3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $str1 = 'The quick brown fox'; echo preg_replace('/s/','zzz',$str1);
based on r5Urh
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
The quick brown fox