Getting the primaray id after creation

[Liquid Fire]

Ok here is the problem, I am creating a system and i need to log any action that is done to the database in a table called log.  The table with just hold the table_name, the user_id, and the table_id on the record add/editted/deleted.  Now logging when I editted or delete if easy since the id already exist.  I need to find out how to get the id(every table's primary key is called id) right after it is create so that whne I use my insert_array function on my mysql class, it return the id on the created entry so i can log the creation of whatever.  anyone know how to do that?

[Wildbug]

In MySQL:  LAST_INSERT_ID()

In PHP: mysql_insert_id()