Laravel 9 Where Clause with Function Query Example Tutorial

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Inside this article we will see the concept i.e Laravel 9 Where Clause with Function Query Example Tutorial. Article contains the classified information about How to use function with where clause laravel.

If you want to use laravel eloquent where function query then there are several ways to do it. We can do query grouping of OR and AND mysql operator.

Laravel eloquent provides where clause query. But if you want to use multiple where conditions with or where then how you will use with laravel eloquent. Then laravel provides the where condition with a function query.

Learn More –

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.

Create Database & Connect

To create a database, either we can create via Manual tool of PhpMyadmin or by means of a mysql command.

CREATE DATABASE laravel_app;

To connect database with application, Open .env file from application root. Search for DB_ and update your details.

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=laravel_app
DB_USERNAME=root
DB_PASSWORD=root

Method #1: Laravel where() Clause with Function Query

We will use laravel eloquent methods to create query grouping of AND and OR.

<?php
  
namespace App\Http\Controllers;
  
use Illuminate\Http\Request;
use App\Models\Post;
  
class PostController extends Controller
{
    /**
     * Write code on Method
     *
     * @return response()
     */
    public function index(Request $request)
    {
        $posts = Post::select("*")
                        ->where("is_published", 1)
                        ->where(function($query) {
                                $query->where('category', 'Laravel')
                                      ->orWhere('viewer', '>', 100);
                            })
                        ->get();
    
        dd($posts);
    }
}

Generated Query

SELECT * FROM posts 

   WHERE is_published = 1 AND (category = 'Laravel' OR viewer > 100)

Method #2: Laravel orWhere() Clause with Function Query

We will use laravel eloquent methods to create query grouping of OR and AND.

<?php
  
namespace App\Http\Controllers;
  
use Illuminate\Http\Request;
use App\Models\Post;
  
class PostController extends Controller
{
    /**
     * Write code on Method
     *
     * @return response()
     */
    public function index(Request $request)
    {
        $posts = Post::select("*")
                        ->where("viewer", ">", 100)
                        ->orWhere(function($query) {
                                $query->where('category', 'Laravel')
                                      ->where("is_published", 1);
                            })
                        ->get();
    
        dd($posts);
    }
}

Generated Query

SELECT * FROM posts 

    WHERE viewer > 100 OR (category = 'Laravel' AND is_published = 1)

We hope this article helped you to learn about Laravel 9 Where Clause with Function Query Example Tutorial in a very detailed way.

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