3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $string = "\0"; if (is_string($string) && isset($string[0])) { echo "y"; } else { echo "n"; }
Output for 4.3.0 - 5.6.21, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
y