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<?php $a = array_diff_assoc(array(array('find')), array('findd')); var_dump($a);
Output for 5.4.0 - 7.1.0
Notice: Array to string conversion in /in/taVEB on line 2 array(1) { [0]=> array(1) { [0]=> string(4) "find" } }
Output for 4.3.0 - 5.3.29
array(1) { [0]=> array(1) { [0]=> string(4) "find" } }