3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo preg_replace('/ Kč/', 'ffKč', 'sdf sdgfsdg sdfgg Kč sdg d');
based on W6gM7
Output for 4.3.0 - 7.1.7
sdf sdgfsdg sdfggffKč sdg d