3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(array('foo' => 5, 'bar' => 6, 'foo' => 7));
based on HRhcb
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(2) { ["foo"]=> int(7) ["bar"]=> int(6) }