How to get all items in cart currently?

$cart = Mage::getModel('checkout/cart')->getQuote();
foreach ($cart->getAllItems() as $item) {
    $productName = $item->getProduct()->getName();
    $productPrice = $item->getProduct()->getPrice();
}

in $cart you got all collection of cart item and if you want to get product id,name you can get from using foreach loop

I found another solution. The following code works for me.

$quote = Mage::getSingleton('checkout/session')->getQuote();
$cartItems = $quote->getAllVisibleItems();
foreach ($cartItems as $item) {
    $productId = $item->getProductId();     
    // Do something more
}

There are several methods that work in a different way:

1. $items = Mage::getSingleton('checkout/cart')->getQuote()->getItemsCollection();
   

   Returns a quote item collection with all items associated to the current quote.

2. $items = Mage::getSingleton('checkout/cart')->getItems();
   

   This is a shortcut for the method above, but if there is no quote it returns an empty array, so you cannot rely on getting a collection instance.

3. $items = Mage::getSingleton('checkout/cart')->getQuote()->getAllItems();
   

   Loads the item collection, then returns an array of all items which are not marked as deleted (i.e. have been removed in the current request)

4. $items = Mage::getSingleton('checkout/cart')->getQuote()->getAllVisibleItems();
   

   Loads the item collection, then returns an array of all items which are not marked as deleted AND do not have a parent (i.e. you get items for bundled and configurable products but not their associated children). Each array item corresponds to a displayed row in the cart page.

Choose what fits your needs best. In most cases the last method is what you need, but unfortunately Magento only provides it as array and not as collection.

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^{Note that Mage::getSingleton('checkout/cart')->getQuote() and Mage::getSingleton('checkout/session')->getQuote() are interchangable.}