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run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = [ [], [], ]; print_r(array_column($x, 'y'));
Output for 5.6.0 - 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.0 - 7.3.0rc3
Array ( )