Merge two eloquent collections with identical keys

Question

Lets say I have a collection like

{
    "object1": [
        {
            "name" xxx,
            "size" 999
        }
    ],
    "object2": [
        {
            "name": yyy,
            "size": 888,
        }
    ]
}

And I have another collection like

{
    "object2": [
        {
            "name" aaa,
            "size" 111
        }
    ],
    "object3": [
        {
            "name": bbb,
            "size": 222,
        }
    ]
}

I would like to get a collection like

{
    "object1": [
        {
            "name" xxx,
            "size" 999
        }
    ],
    "object2": [
        {
            "name": yyy,
            "size": 888,
        },
        {
            "name" aaa,
            "size" 111
        }
    ],
    "object3": [
        {
            "name": bbb,
            "size": 222,
        }
    ]
}

mergeRecursively works but it encapsulates the extra results in an "items" array which looks like this

{
    "object1": [
        {
            "name" xxx,
            "size" 999
        }
    ],
    "object2": {
        "items": [
            {
                "name": yyy,
                "size": 888,
            },
            {
                "name" aaa,
                "size" 111
            }
        ]
    ],
    "object3": [
        {
            "name": bbb,
            "size": 222,
        }
    ]
}

Any help is appreciated! Thanks!

Answer 1

You can use the Collection::each() method to iterate through each item of one collection and build a replacement collection.

$results = new Collection;
$collection1->each(function($item, $key) use ($collection2, $results) {
    $push = $collection2->has($key) ? $item->mergeRecursive($collection2->get($key)) : $item;
    $results[$key] = $push;
});
dump($results);