Magento: how to merge two product collections into one?

Question

if i have two product collections is there a way to merge them into one?

for example (my final intent isn\'t to actually just get a collection of 2 cats, this is jus

Answer 1

I don't think there is such a method, but you can probably do something like that :

foreach ($collection1 as $item){
    $collection2->addElem($item);
}