3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $str = "helloworld"; var_dump( isset($str['notfound']) );
Output for 5.0.0 - 5.0.2, 5.4.0 - 7.1.0
bool(false)
Output for 4.3.0 - 4.4.9, 5.0.3 - 5.3.29
bool(true)