3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php preg_replace('#(df)#', '22', 'sdasdasdasdsdfjksdfsdhfsjkldfsdgfsdhskdfwslediufwsldhsdjfsgh');
based on Wn76a
Output for 4.3.0 - 7.2.0