MysqlI vs. PDO_mysql?

trying to move an omeka classic install on a new server, I have an issue with the connection to my database. Digging into the code I have found that it is because my hosting requires some SSL settings to be set to allow the PHP server to access the database. The issue is that I have not been able to fix it by changing settings in omeka classic, but only by updating the code. I have found that in application/libraries/Omeka/Application/Resource/Db.php if I change the line :

$dbh = Zend_Db::factory('Mysqli', $connectionParams);

to :

$connectionParams["driver_options"][PDO::MYSQL_ATTR_SSL_CA] = "";
$connectionParams["driver_options"][PDO::MYSQL_ATTR_SSL_VERIFY_SERVER_CERT] = false;
$dbh = Zend_Db::factory('PDO_Mysql', $connectionParams);

At first sight it seems to work fine but I wonder if there is a reason to have Mysqli fixed in the code rather than an option to chose between different adapters? Should this create some issues at some screens I have not tried yet?


Omeka Classic is intended to use mysqli only.

PDO will probably work more or less, but things like exceptions and stuff like that could differ. I can’t really say with certainly whether or not there will be some problem with it. Probably any issues would be with things like error reporting rather than normal operation.

Thanks @jflatnes . As this website is more or less readonly, I assume there won’t be many edge cases so most of it should work, I will stay with PDO then.