3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x = new stdClass(); $x->foo = 'foo'; $x->bar = 'bar'; foreach($x as $key => $val) { var_dump($key); }
based on hUDlD
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(3) "foo" string(3) "bar"