3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x = array( (string)0.5 => 1 ); print_r( $x );
based on kPkuV
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0.5] => 1 )