3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(getcwd()); var_dump(realpath(null), realpath(false), realpath(''));
based on AK8MS
Output for 5.2.3 - 7.2.0
string(1) "/" string(1) "/" string(1) "/" string(1) "/"
Output for 5.2.1 - 5.2.2
string(3) "/in" string(3) "/in" string(3) "/in" string(3) "/in"
Output for 4.3.0 - 5.2.0
string(3) "/in" bool(false) bool(false) bool(false)