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This tutorial will show you how to merge collections in Laravel 10. As a Laravel developer, you are aware that dealing with Eloquent models is an essential part of creating powerful and efficient applications. In some cases, you may need to merge data from many Eloquent models into a single cohesive dataset. This is when merging Eloquent models comes in handy.

Article contains quality information about Merge Eloquents in Laravel 10 Collection using Merge Method.

Article contains a very classified information about the basic concept of How to merge Eloquents in laravel. Here, We will merge collections in laravel and also will see how to merge laravel eloquents.

The Illuminate\Support\Collection class provides a fluent, convenient wrapper for working with arrays of data. For example, check out the following code. We’ll use the collect helper to create a new collection instance from the array.

As mentioned above, the collect helper returns a new Illuminate\Support\Collection instance for the given array.

So, creating a collection is as simple as:

$collection = collect([1, 2, 3]);

Let’s get started.

Laravel Installation

Open terminal and run this command to create a laravel project.

composer create-project laravel/laravel myblog

It will create a project folder with name myblog inside your local system.

To start the development server of laravel –

php artisan serve

URL: http://127.0.0.1:8000

Assuming laravel already installed inside your system.

Method #1: Use merge() Method

We will see how to use merge() into collection.

Suppose we have SiteController.php a controller file inside /app/Http/Controllers folder.

Code Example #1 – Merge Collection with Values

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class SiteController extends Controller
{
    public function index()
    {
        $collection1 = collect([1, 2, 3]);
        $collection2 = collect([4, 5]);

        $mergedCollection = $collection1->merge($collection2);

        $mergedCollection->all();

        dd($mergedCollection);
    }
}

Concept

$mergedCollection = $collection1->merge($collection2);

$mergedCollection->all();

Output

Code Example #2 – Merge Collection with Unique Values

Here,

Suppose we have two collections, but few elements of collections are duplicate. Now, let’s see how to merge unique values only.

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class SiteController extends Controller
{
    public function index()
    {
        $collection1 = collect([1, 2, 3, 4]);
        $collection2 = collect([4, 5, 5, 6, 7]);

        $mergedCollection = $collection1->merge($collection2);

        $mergedCollection = $mergedCollection->unique(function ($item) {
            return $item;
        });

        $mergedCollection->all();

        dd($mergedCollection);
    }
}

Concept

$mergedCollection = $mergedCollection->unique(function ($item) {
     return $item;
});

Output

Method #2: Merge Eloquent Collection

In this example we will see how to merge laravel eloquents.

Let’s say we have two models – Product & Seller

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Models\Product;
use App\Models\Seller;

class SiteController extends Controller
{
    public function index()
    {
        $collection1 = Product::get();
        $collection2 = Seller::get();

        $mergedCollection = $collection1->merge($collection2);

        $mergedCollection->all();

        dd($mergedCollection);
    }
}

We hope this article helped you to learn Step-by-Step Guide To Merge Eloquents in Laravel 10 Collection in a very detailed way.

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