3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(preg_match('/\A\w/z', 'あ'));
Output for 4.3.11 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_match(): Unknown modifier 'z' in /in/dR3fV on line 2 bool(false)
Output for hhvm-3.12.0
Warning: Unknown modifier 'z': [/\A\w/z] in /in/dR3fV on line 2 bool(false)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier 'z' in /in/dR3fV on line 2 bool(false)