PHP mysql_insert_id() for MySQL UUID() primary key

Question

Is there some equivalent to PHP mysql_insert_id to fetch the last inserted UUID() primary key? (I always get 0. It works for auto_inc integers though)

Answer 1

I found this quite short and simple solution:

set @id=UUID();
insert into <table>(<col1>,<col2>) values (@id,'another value');
select @id;

Answer 2

No, last_insert_id() only retrieves that last generated auto_increment fields. You'll have to do a select uuid() first, then do an insert using that uuid.

However, note that uuids can't be guaranteed to be unique - they're simply very unlikely to collide. If you do require uniqueness, then go with an auto_increment - they'll never be re-used within any single table.