title: PHP ORM with full composite primary/foreign key support
body: <p>I'm looking for PHP5 ORM which fully supports composite (multi-column) relations based on composite primary keys and foreign keys.</p>
  
  <p>I hoped that Doctrine 2 would solve this problem but it doesn't. It's a basic feature in relational data modelling but none of PHP ORM software I know supports it.</p>
  
  <p>I've recently found that SQLAlchemy has full support but I need something for PHP, not Python.</p>