3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php foreach(array( '.aaf', '..dafeafw', '..', '.' ) as $test) { var_dump(substr($test, 0, 1) === '.'); }
Output for 4.3.0 - 7.1.0
bool(true) bool(true) bool(true) bool(true)