Oracle adapter statement closeCursor() is not working properly

Close cursor method cleans up non-existing array $bind_params, correct variable name is $bindParams. (comment of $bindParams is wrong to because it also speaks about $bind_params)

Now:

public function closeCursor()
{
$this->bind_params = array();
return oci_free_statement($this->statement);
}

Fix:

public function closeCursor()
{
$this->bindParams = array();
return oci_free_statement($this->statement);
}