>> Get unique value in an array::
$arra1 = array('12','15','18','17','12','18');
$cntArr = array_count_values($arra1);
$newArr = array();
echo "<pre>"; print_r($arra1); echo "</pre>";
echo "<pre>"; print_r($cntArr); echo "</pre>";
foreach($cntArr as $key => $val){
if ($val > 1){
array_push($newArr,$key);
}
}
echo "<pre>"; print_r($newArr); echo "</pre>";
*********** Good Luck **********
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