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<?php $row['IMEI_MX'] = '123,222,333'; $row2["IMEI_MX"] = '123,222'; $imei = $row["IMEI_MX"]; $imeiserial = explode(',', $imei); $imeitransfer = $row2["IMEI_MX"]; $imeitransferserial = explode(',', $imeitransfer); $a1 = $imeiserial; $a2 = $imeitransferserial; $result = array_diff($a1,$a2); print_r($result);

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