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Inside this article we will see how to get unique values from laravel collections. Article contains a very classified information about the basic concept of Laravel 8 collection get unique values.

We will consider single dimensional array as well as multidimensional array for this laravel 8 collection.

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]);

Learn More –

Let’s get started.

Laravel Installation

We will create laravel project using composer. So, please make sure your system should have composer installed. If not, may be this article will help you to Install composer in system.

Here is the command to create a laravel project-

composer create-project --prefer-dist laravel/laravel blog

To start the development server of Laravel –

php artisan serve

URL: http://127.0.0.1:8000

Assuming laravel already installed inside your system.

Example #1 Get Unique (Single Dimensional Collection Array)

In this example we will consider a single dimensional array. We will see how to get only unique values from it.

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

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class SiteController extends Controller
{
    public function index()
    {
        $data = [1,2,2,3,1,4,3,5,6,7,8,7,8,9,9,5];
  
        $data  = collect($data)->unique();
  
        dd($data);
    }
}

Output

When we execute this code snippet, then we will get something like this –

Example #2 Get Unique (Multi Dimensional Collection Array)

In this example we will consider a multi dimensional array. We will see how to get only unique values from it.

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class SiteController extends Controller
{
    public function index()
    {
        $data = collect([
            [
                ["id" => 1, "name" => "Sanjay", "email" => "sanjay@gmail.com"],
                ["id" => 2, "name" => "Vijay", "email" => "vijay@gmail.com"],
                ["id" => 1, "name" => "Sanjay", "email" => "sanjay@gmail.com"],
                ["id" => 3, "name" => "Ashish", "email" => "ashish@gmail.com"],
                ["id" => 3, "name" => "Ashish", "email" => "ashish@gmail.com"]
            ],
            [
                ["id" => 1, "name" => "Sanjay", "email" => "sanjay@gmail.com"],
                ["id" => 2, "name" => "Vijay", "email" => "vijay@gmail.com"],
                ["id" => 2, "name" => "Vijay", "email" => "vijay@gmail.com"]
            ]
        ]);

        $data = $data->map(function ($array) {
            return collect($array)->unique('id')->all();
        });

        dd($data);
    }
}

Output

When we execute this code snippet, then we will get something like this –

We hope this article helped you to Laravel 8 Collection Get Unique Values Tutorial in a very detailed way.

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