Data Type Php

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  4. Intersecting two arrays that have no duplicate keys, all the keys will be retained
    $arr1 = array("Paul"=>25, "Ildiko"=>38, "Nick"=>27);
    $arr2 = array("Ildiko"=>27, "Paul"=>38);
    print "\nIntersect:\n";
    var_dump(array_intersect($arr1, $arr2));
?>