yii\db\QueryBuilder::buildBetweenCondition PHP Method

    public function buildBetweenCondition($operator, $operands, &$params)
    {
        if (!isset($operands[0], $operands[1], $operands[2])) {
            throw new InvalidParamException("Operator '{$operator}' requires three operands.");
        }
        list($column, $value1, $value2) = $operands;
        if (strpos($column, '(') === false) {
            $column = $this->db->quoteColumnName($column);
        }
        if ($value1 instanceof Expression) {
            foreach ($value1->params as $n => $v) {
                $params[$n] = $v;
            }
            $phName1 = $value1->expression;
        } else {
            $phName1 = self::PARAM_PREFIX . count($params);
            $params[$phName1] = $value1;
        }
        if ($value2 instanceof Expression) {
            foreach ($value2->params as $n => $v) {
                $params[$n] = $v;
            }
            $phName2 = $value2->expression;
        } else {
            $phName2 = self::PARAM_PREFIX . count($params);
            $params[$phName2] = $value2;
        }
        return "{$column} {$operator} {$phName1} AND {$phName2}";
    }