3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array( 'one' => null, 'two' => null, 'three' => null, ); $new_arr = @array_flip($arr); print_r($new_arr);
Output for 4.3.0 - 5.6.21, hhvm-3.12.0, 7.0.0 - 7.1.0
Array ( )
Output for hhvm-3.10.0

Process exited with code 153.