Array difference for associate array

Code:

<?php
   $array1 = array("OH" => "Ohio", "CA" => "California", "HI" => "Hawaii");
   $array2 = array("50" => "Hawaii", "CA" => "California", "OH" => "Ohio");
   $array3 = array("TX" => "Texas", "MD" => "Maryland", "KS" => "Kansas");
   $diff = array_diff_assoc($array1, $array2, $array3);
   print_r($diff);
?>

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M. S. Rakha, Ph.D.
Queen's University
Canada

Author: DrRakha
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