<?php
function myfunction($v1,$v2)
{
if ($v1===$v2)
&nbsp;&nbsp;  {
&nbsp;&nbsp;  return "same";
&nbsp;&nbsp;  }
return "different";
}

$a1=array("Horse","Dog","Cat");
$a2=array("Cow","Dog","Rat");
print_r(array_map("myfunction",$a1,$a2));
?>