framework/db/conditions/BetweenColumnsConditionBuilder.php
protected function createPlaceholder($value, &$params)
    {
        if ($value instanceof ExpressionInterface) {
            return $this->queryBuilder->buildExpression($value, $params);
        }

        return $this->queryBuilder->bindParam($value, $params);
    }
protected function createPlaceholder($value, &$params)
    {
        if ($value instanceof ExpressionInterface) {
            return $this->queryBuilder->buildExpression($value, $params);
        }

        return $this->queryBuilder->bindParam($value, $params);
    }
protected function createPlaceholder ( $ value , & $ params ) { if ( $ value instanceof ExpressionInterface ) { return $ this -> queryBuilder -> buildExpression ( $ value , $ params ) ; } return $ this -> queryBuilder -> bindParam ( $ value , $ params ) ; }
Attaches $value to $params array and returns placeholder.

@param mixed $value
@param array $params passed by reference
@return string
Attaches $value to $params array and returns placeholder .