3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $str = "helloworld"; var_dump( isset($str['f'][0]) );
Output for 4.3.0 - 5.3.29, 7.0.0 - 7.1.0
bool(false)
Output for 5.4.0 - 5.6.28
bool(true)