<?php $arr1 = [ 1 => 'a', 2 => 'b', 3 => 'c', 4 => 'd', 5 => 'e', 6 =>'f' ]; $arr2 = [ 1 => 'c', 2 => 'e', 3 => 'f' ]; $finalArray = array_intersect($arr1,$arr2); print_r($finalArray);
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