3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(preg_replace('/(nödkåpa)/i', '$1', 'nödkåpa blabla'));
based on Nf8LV
Output for 4.3.0 - 7.2.0
string(16) "nödkåpa blabla"