Magento add item to Product Collection but not showing up

Question

I have a product Collection:

$_productCollection = Mage::getResourceModel('catalog/product_collection')->getCollection()->setPageSize(10);

I want to add a product to that collection by using addItem() method:

$product = Mage::getModel('catalog/product')->load(66);
$_productCollection->addItem($product);

I tried to dump my $_productCollection before and after using addItem() method but I get the same result.

What's wrong with that ? Thanks in advance

Answer 1

You should load the collection before adding items, but this will invalidate any filter you want to apply later

Try...

$_productCollection->load();
$product = Mage::getModel('catalog/product')->load(66);
$_productCollection->addItem($product);