3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = 'PieniÄ…dze Dla Ciebie sp. z o.o.'; $b = '["Pieni\u0105dze Dla Ciebie sp. z o.o."]'; var_dump(preg_match('/' . $a . '/i', $b));
based on sqQiI
Output for 4.3.0 - 7.1.0
int(0)