3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function foo($m) { return md5($m[1]); } var_dump(preg_replace_callback('/A([^B]+)B/','foo', "foo ApasswordB bar \xef\xb7\x90"));
Output for 4.3.0 - 7.2.0
string(44) "foo 5f4dcc3b5aa765d61d8327deb882cf99 bar ﷐"