3v4l.org

run code in 150+ 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 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
sdf sdgfsdg sdfggffKč sdg d