It's not possible during 3.x, ext/mysql doesn't support prepared statements and it's not worth it to emulate this, especially as we're dropping it in 4.0.

As for the rest of the package, the bulk of the work is already done but the implementations are more reliant on each driver's configuration so right now I'm not sure even with all the work ported over we could write SQL and handle parameterized queries all that well without having an extra layer of string processing in our query processing code.

This is the stuff that needs to be ported over:

• joomla-framework/database@66035e4 - Adds bound variables to the PDO MySQL query object (note the abstract PDO driver already supports prepared statements)
• joomla-framework/database#40 - PDO implementation of PostgreSQL, usable in parallel with the native ext/pgsql support
• joomla-framework/database#38 - MySQLi prepared statement support
• joomla-framework/database#39 - PostgreSQL prepared statement support
• joomla-framework/database#78 - SQL Server prepared statement support

Count me in here too, would love to see that happen!

#16402 would make use of the Framework database package in 4.0. Includes making prepared statement support available and PDO PostgreSQL connections.

closed as this work is in progress as mentioned above.