3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array('1' => 'A', '1' => 'B', "C", '3' => 'D'); var_dump($a);
based on TuOOe
Output for 4.3.0 - 7.2.0
array(3) { [1]=> string(1) "B" [2]=> string(1) "C" [3]=> string(1) "D" }