3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php mb_internal_encoding('UTF-8'); mb_regex_encoding('UTF-8'); var_dump(mb_eregi('Ü','ü')); var_dump(mb_ereg("[Ü]","ü"));
Output for 5.0.0 - 7.3.1
int(1) bool(false)
Output for 4.3.4 - 4.4.9
bool(false) bool(false)
Output for 4.3.2 - 4.3.3
Fatal error: Call to undefined function: mb_regex_encoding() in /in/I4Ksj on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: mb_regex_encoding() in /in/I4Ksj on line 4