This is the preferred driver for connections to the following databases:

• MySQL
• MariaDB
• Percona

This driver uses the PHP mysqli interface and supports all table types, with full support for transactions and rollback when the table type supports it.

It replaces Legacy MySQL drivers (mysql, mysqlt and mysqlpo).

The method renameColumnSql normally takes 3 parameters, $tableName, $oldColumnName and $newColumnName. When used with the mysql provider, a full definition of the column must be provided, as if creating the column new

/*
* We are going to rename a column from col9 to col6.
*/
$flds = 'col6 C(50) NOTNULL DEFAULT "BILL"';
 
# Then create a data dictionary object, using this connection
$dict = NewDataDictionary($db);
 
$sql = $dict->renameColumnSql($table,'col9','col6', $flds);

From ADOdb version 5.21, you can make an SSL connection to MySQL in the following way:

/*
* Enable ADOdb
*/
$db = newAdoConnection('mysqli');
/*
* Set the SSL parameters
*/
$db->ssl_key    = "key.pem";
$db->ssl_cert   = "cert.pem"; 
$db->ssl_ca     = "cacert.pem";
$db->ssl_capath = null; 
$db->ssl_cipher = null; 
 
/*
* Open the connection
*/
$db->connect($host, $user, $password, $database);

/*
* Enable ADOdb
*/
$db = newAdoConnection('mysqli');
 
$database = 'employees';
$host     = 'my-corporation.mysql.database.azure.com';
$user     = 'corpuser';
$password = 'Qzrt6r55geRt!';
 
$db->ssl_ca     = '/opt/azure-cert/DigiCertGlobalRootCA.crt.pem';
 
/*
* Open the connection
*/
$db->connect($host, $user, $password, $database);

ADOdb 5.22 introduced support for “true” bound variables in prepared statements²⁾. Before that, parameterized queries were emulated, which was a potential security risk.

When using database engines pretending to be MySQL but not implementing prepared statements such as ClickHouse and Manticore Search, it is possible³⁾ to force usage of emulated queries (i.e. reverting to behavior of ADOdb 5.21 and older) by setting the doNotUseBoundVariables property.

$db = newAdoConnection('mysqli');
$db->doNotUseBoundVariables = true;
$db->connect($host, $user, $password, $database);
$db->execute($sql, $param);