SQL Builder for PHP, with JOIN support?

Question

Are any of you aware of a library that helps you build/manipulate SQL queries, that supports JOIN\'s?

It would give a lot of flexibility i\'d think if you have somet

Answer 1

superfast SQLObject based IteratorQuery from pastaPHP
iterates over resource

 foreach(_from('users u')
   ->columns("up.email_address AS EmailAddress", "u.user_name AS u.UserName")
   ->left('userprofiles up', _eq('u.id', _var('up.id')))
   ->where(_and()->add(_eq('u.is_active',1)))
   ->limit(0,10)
   ->order("UserName")
   ->execute("myConnection") as $user){

   echo sprintf(
          '%s
', 
          $user->EmailAdress, 
          $user->UserName
   );
 }