Need php equivalant for the JAVA snippet

[eluser]halwaraj[/eluser]
I have this JAVA code snippet:

Code:

PreparedStatement ps = conn.prepareStatement("insert query for auto key table", Statement.RETURN_GENERATED_KEYS);

Is there something similar in CI. Its there in ZEND i know.

The above code snippet returns the auto generated keys like PK, to be used later as FK.