public static function getDefaultCurrencyCode() { if (!self::$defaultCurrencyCode) { $sql = "SELECT value FROM " . self::getTableName('core_config_data') . " WHERE path = 'currency/options/default'"; if (self::useMySqli()) { //mysqli $result = mysqli_query(self::$mysqlidatabase, $sql); if (count($result)) { while ($row = mysqli_fetch_array($result)) { self::$defaultCurrencyCode = $row[0]; } } } else { //PDO if (count($result)) { foreach (self::$pdodatabase->query($sql) as $row) { while ($row = mysqli_fetch_array($result)) { self::$defaultCurrencyCode = $row[0]; } } } } } return self::$defaultCurrencyCode; }