3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php phpversion() >= "7.0.1" or die(); $obj = new stdClass(); $obj->bar = "xyz"; $data = array("foo" => "bar"); $key = "foo"; echo $obj->{$data[$key]};
based on hFsSK
Output for 7.0.1 - 7.2.0
xyz
Output for 5.5.0 - 7.0.0