public function prepareCheckDigitsCalculate($iban)
    {
        $firstPlaces = substr((string)$iban, 0, 2);
        $lastPlaces = substr((string)$iban, 4);
        $conversion = strtr((string)$lastPlaces . (string)$firstPlaces . '00', $this->charMatching);
        return $conversion;
    }
public function prepareCheckDigitsCalculate($iban)
    {
        $firstPlaces = substr((string)$iban, 0, 2);
        $lastPlaces = substr((string)$iban, 4);
        $conversion = strtr((string)$lastPlaces . (string)$firstPlaces . '00', $this->charMatching);
        return $conversion;
    }
public function prepareCheckDigitsCalculate ( $ iban ) { $ firstPlaces = substr ( ( string ) $ iban , 0 , 2 ) ; $ lastPlaces = substr ( ( string ) $ iban , 4 ) ; $ conversion = strtr ( ( string ) $ lastPlaces . ( string ) $ firstPlaces . '00' , $ this -> charMatching ) ; return $ conversion ; }
prepare check digits calculate

@param       string      $iban       iban
@return      int                     conversion of value
prepare check digits calculate