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This tutorial explains how you use the powerful filter() method in Laravel 10 collections. Working with data is at the heart of web development, as a Laravel developer you understand. When it comes to quickly retrieving and modifying data within collections, the filter() method opens up a world of options.

You will see the concept of Step-by-step guide to using Laravel 10 Collection filter() method.

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.

Laravel Collection – filter() Method

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

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

Code Example #1

Laravel Collection filter() with multi dimensional array.

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class SiteController extends Controller
{
    public function index()
    {
        $students = collect([
            ["id" => 1, "name" => "Sanjay", "email" => "sanjay@gmail.com", "marks" => 88],
            ["id" => 2, "name" => "Vijay", "email" => "vijay@gmail.com", "marks" => 70],
            ["id" => 3, "name" => "Ashish", "email" => "ashish@gmail.com", "marks" => 75]
        ]);

        $passed = $students->filter(function ($value, $key) {
            return data_get($value, 'marks') > 70;
        });

        $passed = $passed->all();

        dd($passed);
    }
}

Concept

$passed = $students->filter(function ($value, $key) {
      return data_get($value, 'marks') > 70;
});

Output

Code Example #2

Laravel Collection filter() with single dimensional array.

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class SiteController extends Controller
{
    public function index()
    {
        $data = collect([2, 3, 5, null, false, '', 0, []]);

        $data = $data->filter()->all();

        dd($data);
    }
}

In this case it will remove the false values from array

We hope this article helped you to Learn Laravel 10 Collection filter() Tutorial for Beginners in a very detailed way.

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