3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $story = [ 'documents' => [ [ 'authors' => [ ['id' => 2411] ] ] ] ]; print_r(array_column($story['documents'], 'authors'));
based on nZA1B
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.0rc3
Array ( [0] => Array ( [0] => Array ( [id] => 2411 ) ) )