Example which gives the correct out

gistfile1.php

$path = '/vagrant/library';
set_include_path(get_include_path() . PATH_SEPARATOR . $path);


include("/vagrant/library/Zend/Loader.php");
include("/vagrant/library/Zend/Db.php");

$db = Zend_Db::factory('Mysqli', array(
    'host'     => 'localhost',
    'username' => 'root',
    'password' => '',
    'dbname'   => 'test'
));

$stmt1 = $db->query('select * from products');
var_dump($stmt1->getDriverStatement());

$stmt2 = $db->query('select * from products');
var_dump($stmt1->getDriverStatement());