3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(preg_match('//u', "\xE3\x81\x82", $matches)); var_dump(preg_match('//u', "\xF0\xA0\x80\x8B", $matches)); var_dump(preg_match('//u', "\xF0\xA0\x80\x8B\x00", $matches)); var_dump(preg_match('//u', "𠀋", $matches)); var_dump("\xF0\xA0\x80\x8B" == "𠀋");
based on tMGao
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
int(1) int(1) int(1) int(1) bool(true)
Output for hhvm-3.10.0

Process exited with code 153.