I am using **Zend Framework** and **Oracle** and I am trying to receive single value from database like this:

```
$userId = (int) $this->_getParam('userId');

// CREATE TABLE MEMBERS (
//    "MEMEBER_ID" NUMBER,
//    "FIRSTNAME" VARCHAR2(20 CHAR),
//    "LASTNAME" VARCHAR2(20 CHAR),
//    "EMAIL" VARCHAR2(40 CHAR),
//    "ABOUT" CLOB
// )

$sql = 'SELECT about FROM members WHERE id = :userId';

$binds = array (
   'userId' => $userId
);

$about = Zend_Registry::get('db')->fetchOne($sql, $binds);

```

According to [manual](http://framework.zend.com/manual/1.11/en/zend.db.adapter.html#zend.db.adapter.select.fetchone), `fetchOne()` should return string, but when I dump returned value, it looks like this:

```
object(OCI-Lob)#1161 (1) {
  ["descriptor"] => resource(209) of type (oci8 descriptor)
}

```

As you can see, object is returned, which is against the manual - "*it returns only a single scalar value, **not an array or an object***."

How can I convert this to string?