How to Use Collection count() and countBy() Methods in Laravel 8?
Jan 29, 2022 . Admin
Hi Friends,
I am going to explain you example of laravel 8 collection count() and countby() methods. Inside this article we will see the use of count() and countBy() methods in laravel 8 collections. Article contains a very classified information about the basic concept of Laravel 8 Collection count() and countBy().
We will see the concept of count number of items in laravel collection. We will count all items in a collection also will cover count element wise.
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.
Let's see bellow example:
Step 1: Download LaravelLet us begin the tutorial by installing a new laravel application. if you have already created the project, then skip following step.
composer create-project laravel/laravel example-appStep : 2 - Create Controller
php artisan make:controller CollectControllerExample #1 Use count() Method
/app/Http/Controllers
<?php namespace App\Http\Controllers; use Illuminate\Http\Request; class SiteController extends Controller { public function index() { $data = collect([1, 2, 3, 4, 2, 3, 1, 5, 4, 7, 6, 8, 9, 3, 10]); $total = $data->count(); echo "Total Collection Items: " . $total; } }Output:
Total Collection Items : 15Example #2 Use countBy() Method
<?php namespace App\Http\Controllers; use Illuminate\Http\Request; class SiteController extends Controller { public function index() { $data = collect([1, 2, 3, 4, 2, 3, 1, 5, 4, 7, 6, 8, 9, 3, 10, 4, 5]); $elements = $data->countBy(); dd($elements); } }Output:
Illuminate\Support\Collection{ items: array:10[ 1=>2 2=>2 3=>3 4=>3 5=>2 7=>1 6=>1 8=>1 9=>1 10=>1 ] }I hope it can help you...