I'm new to Prestashop, I cant find examples anywhere of how to get the current cart contents. I can get a list of all carts, but how do I get the current users cart?
it is easy and simple. I am considering you are using PS 1.5.x
In controllers other than cart controller
$cart = new Cart($this->context->cookie->id_cart);
or in an class
$context = new Context();
$cart = new Cart($context->cookie->id_cart);
Now the $cart is an object, and it has all the current cart data.
You can also get the cart products by calling getProducts like below
$cartProducts = $cart->getProducts();
Hope this will help.
Please note that code is not tested and is just a sample code for your idea.
Thank you