3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $myArray = array( 0, NULL, '', '0', -1 ); print_r( array_filter($myArray) );
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [4] => -1 )