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run code in 150+ php & hhvm versions
Bugs & Features
<?php $anArray = array(1); $anotherArray = array(2); var_dump((is_array($anArray) && is_array($anotherArray) && array_diff($anArray, $anotherArray) === array_diff($anotherArray, $anArray)));
based on tgAXt
Output for 4.3.0 - 7.1.0
bool(false)