How to Create and Use Laravel 9 Macro Example Tutorial

Inside this article we will see the concept i.e How to Create and Use Laravel 9 Macro Example Tutorial. Article contains the classified information about Laravel Macros – Extending Laravel’s Core Classes.

If you are looking for a solution i.e What are Laravel Macros and How to Extend then this article will help you a lot for this. Tutorial is super easy to understand and implement it in your code as well.

Laravel Macros are a great way of extending Laravel’s core classes and add extra functionality required for your application.

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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.

What is Laravel Macro?

In simple word, Laravel Macro is a way to add some missing functionality to Laravel’s internal component with a piece of code which doesn’t exist in the Laravel class.

To implement a Laravel Macro, Laravel provides a PHP trait called Macroable.

We can check for example Response class of Laravel locating at Illuminate\Http\Response which implements the Macroable trait, which means you can extend the Response class using a Macro.

Macroable Laravel’s Classes

The following classes of Laravel allow for macros to be created by using the Illuminate\Support\Traits\Macroable trait.

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Here are some of the most commonly used classes to create macros.

• Request: Illuminate\Http\Request
• Response: Illuminate\Http\Response
• Collection: Illuminate\Support\Collection
• Str: Illuminate\Support\Str
• Router: Illuminate\Routing\Router
• UrlGenerator: Illuminate\Routing\UrlGenerator
• Cache: Illuminate\Cache\Repository
• Filesystem: Illuminate\Filesystem\Filesystem
• Arr: Illuminate\Support\Arr
• Rule: Illuminate\Validation\Rule

Create a Laravel Macro

Before creating a Laravel Macro, we have to make sure our targeted class use the Macroable trait. Here we will be create a macro on Illuminate\Support\Str class which will check the length of a given string named isLength.

Register a Macro

Open AppServiceProvider.php from /app/Providers folder. Register macro using boot() method of it.

<?php

namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use Illuminate\Support\Str;

class AppServiceProvider extends ServiceProvider
{
    /**
     * Register any application services.
     *
     * @return void
     */
    public function register()
    {
    }

    /**
     * Bootstrap any application services.
     *
     * @return void
     */
    public function boot()
    {
        Str::macro('isLength', function ($str, $length) {
           
            return static::length($str) == $length ? 'String Length is ' . $length : 'String length is not ' . $length;
        });
    }
}

Create Route

Open web.php file from /routes folder. Add this route into it.

//...

use Illuminate\Support\Str;

Route::get('route-1', function () {

    dd(Str::isLength('This is a Laravel Macro', 24));
  
});

Route::get('route-2', function () {

    dd(Str::isLength('Welcome To Online Web Tutor', 27));
  
});

//...

Application Testing

Run this command into project terminal to start development server,

php artisan serve

URL: http://127.0.0.1:8000/route-1

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Output

"String length is not 24"

URL: http://127.0.0.1:8000/route-2

Output

"String Length is 27"

We hope this article helped you to learn How to Create and Use Laravel 9 Macro Example Tutorial in a very detailed way.

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