ADOdb can control unlimited independent connections because each connection is controlled completely separately.

The connections can be multiple connections to the any type of database.

/*
* Only one instance of common code need to be loaded
*/
include 'adodb/adodb.inc.php'; 
 
/*
* Establish connection to 2 mysql databases
*/
$conn1 = newAdoConnection('mysqli');
$conn2 = newAdoConnection('mysqli');
 
/*
* Add an additional connection to oracle
*/
$conn3 = newAdoConnection('oci8');