<?php $array1 = array("a" => "green", "b" => "brown", "c" => "blue"); $array2 = array("a" => "green", "c" => "blue2", "d" => "cyan"); $array1 = array_intersect_key($array1, $array2); print_r($array1); $result = array_intersect_key($array2, $array1); print_r($result);
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