leonguyen / mini-laravel

A simple PHP mvc framework like Laravel application.

How to use

• About
• How to Install
• Define Route
• Route Parameter
• Multiple Route Parameters
• Request
• Database and Migration
• Database Seeder
• Binding Interface to Service Class
• Controller Method Dependency Injection
• Constructor Dependency Injection
• Model
• Database Connection
• Views
• Global Middleware
• Route Middleware
• Custom Blade Directivee
• From Validation
• CSRF Token
• Collection & Macro
• Session Flash Message
• Log

About

MII, A basic PHP MVC framework design in a way that you feel like you are working in a Laravel application. In this framework you will get all the basic features of a web application needs like routing, middleware, dependency injection, eloquent relationship, model, blade template engine and interface injection and many mores. Test it and if you like, please give a star to it.

How to Install

We can easily setup and install this application with some few steps. Before using this application, minimum PHP 8.1 version is needed.

• Step 1: git clone https://github.com/techmahedy/mini-laravel.git or download this application
• Step 2: Go to project directory with this command cd mini-laravel and run composer update
• Step 3: Copy .env.example to .env
• Step 4: Start the development server by running this command php -S localhost:8000

Define Route

To define route, navigate to this file and update

routes/web.php

<?php

use App\Core\Route;
use App\Http\Controllers\ExampleController;

Route::get('/', [ExampleController::class, 'index']);
Route::get('/about', [ExampleController::class, 'about']);

Binding Interface to Service Class

To bind interface with your service class, just update App\Providers\AppServiceProvider.php.

<?php

namespace App\Providers;

use App\Core\Container;
use App\Services\StripePaymentService;
use App\Contracts\PaymentServiceContract;

class AppServiceProvider extends Container
{
    public function register()
    {  
       //Remember, the global request() helper is available here. You can get input value here like
       //request()->input('payment_type')
       return $this->bind(PaymentServiceContract::class, StripePaymentService::class);
       //or
       return $this->singleton(PaymentServiceContract::class, StripePaymentService::class);
    }
}

Dependency Injection

Now look at that, how you can use dependency injection.

<?php

namespace App\Http\Controllers;

use App\Models\User;
use App\Models\Post;
use App\Core\Request;
use App\Contracts\PaymentServiceContract;

class ExampleController extends Controller
{   
    /**
     * You can pass as many class as you want as parameter
     */
    public function index(
        Request $request, //class dependency injection
        User $user, //class dependency injection
        Post $post, //class dependency injection
        PaymentServiceContract $payment //interface dependency injection
    ) {
        
       //Use any eloquent query of Laravel
    }

    public function about()
    {
        return view('about.index');
    }
}

Constructor Dependency Injection

Now look at that, how you can use dependency injection using constructor.

<?php

namespace App\Http\Controllers;

use App\Models\User;
use App\Models\Post;
use App\Core\Request;
use App\Contracts\PaymentServiceContract;

class ExampleController extends Controller
{   
    /**
     * Look at that, we are passing interface, models. How cool it is
     */
    public function __construct(
        public PaymentServiceContract $payment, 
        public User $user, 
        public Post $post,
    ) {}
}

Model

Now look at Model, how you can use it

use App\Core\Model;

class User extends Model
{   
    /**
     * Use any features of Laravel.
     */
}

Database Connection

Connect your database like that, just pass your credentials to .env

DB_CONNECTION=mysql
DB_HOST=localhost
DB_PORT=3306
DB_DATABASE=
DB_USERNAME=
DB_PASSWORD=

And you can print configuration value like $_ENV['DB_CONNECTION'] or you can use env('DB_CONNECTION')

Views

To work with views, default view file path inside resources/views. Now passing data with views like

<?php

use App\Core\Route;
use App\Core\Application;

Route::get('/', function () {
    $version = Application::VERSION;
    return view('welcome', compact('version'));  //for nested folder file view: home.index
});

This will load welcome.blade.php file. We can print this value like

<h1>{{ $version }}</h1>

Avaiable blade systex

@section('looping-test')
  <p>Let's print odd numbers under 50:</p>
  <p>
    @foreach($numbers as $number)
      @if($number % 2 !== 0)
        {{ $number }} 
      @endif
    @endforeach
  </p>
@endsection

For mastering template

@include('shared.header')
<body>
  <div id="container">
    <h3>Welcome to <span class="reddish">{{ $title }}</span></h3>
    <p>{{ $content }}</p>
    
    <p>Master file</p>
    
    @yield('looping-test')
  </div>
  @include('shared.footer')
</body>

You can use any blade systex as you want like laravel framework

Route Parameters

You can pass single or multiple parameter with route as like below

<?php

use App\Core\Route;
use App\Http\Controllers\ProfileController;

Route::get('/user/{id}', [ProfileController::class, 'index']);

Now accept this param in your controller like:

<?php

namespace App\Http\Controllers;

class ProfileController extends Controller
{
    public function index($id)
    {
        return $id;
    }
}

Multiple Route Parameters

You can pass multiple parameter with route as like below

<?php

use App\Http\Controllers\ProfileController;

Route::get('/user/{id}/{username}', [ProfileController::class, 'index']);

Now accept this multiple param in your controller like:

<?php

namespace App\Http\Controllers;

class ProfileController extends Controller
{
    public function index($id, $username)
    {
        return $id;

        return $username;
    }
}

Request

Request is most important thing when we work in a web application. We can use Request in this application like

<?php

namespace App\Http\Controllers;

use App\Core\Request;

class ExampleController extends Controller
{
    public function store(Request $request)
    {   
        //asume we have a url like http://www.example.com/?name=mahedi. Now we can check.
        if($request->has('name')){
            
        }

        //We can also check form request data like
        if($request->has('name') && $request->has('email')){
            
        }

        //Now get the value from request like:
        $name = $request->input('name');
        $email = $request->input('email');

        //You can also use global request() helper like:
        $name = request()->input('name');

        //or
        if(request()->has('name')){
            
        }

        //get all the input as an array
        $input = $request->all();
        dd($input);
    }
}

Global Middleware

We can define multiple global middleware. To define global middleware, just update the App\Http\Kernel.php file's $middleware array as like below

<?php

/**
 * Application global middleware
 */
public $middleware = [
    \App\Http\Middleware\ExampleMiddleware::class,
];

Now update your middleware like

<?php

namespace App\Http\Middleware;

use Closure;
use App\Core\Request;
use App\Core\Middleware\Contracts\Middleware;

class ExampleMiddleware implements Middleware
{
    public function __invoke(Request $request, Closure $next)
    {   
        /**
         * Code goes here
         */
        return $next($request);
    }
}

Route Middleware

We can define multiple route middleware. To define route middleware, just update the App\Http\Kernel.php file's $routeMiddleware array as like below

<?php

/**
 * The application's route middleware.
 *
 * These middleware may be assigned to groups or used individually.
 *
 * @var array<string, class-string|string>
 */
protected $routeMiddleware = [
    'auth' => \App\Http\Middleware\Authenticate::class,
];

And update your route like:

<?php

use App\Core\Route;
use App\Http\Controllers\ProfileController;

Route::get('/', [ProfileController::class,'index'])->middleware('auth');

Now update your middleware like

<?php

namespace App\Http\Middleware;

use Closure;
use App\Core\Request;
use App\Core\Middleware\Contracts\Middleware;

class Authenticate implements Middleware
{
    /**
     * handle.
     *
     * @param	Request	$request	
     * @param	Closure	$next   	
     * @return	mixed
     */
    public function handle(Request $request, Closure $next)
    {
        /**
         * code
         */
        return $next($request);
    }
}

Custom Blade Directive

We can define custom blade directive. To define it, update App\Providers\AppServiceProvider.php as like below

<?php

namespace App\Providers;

use App\Core\Container;

class AppServiceProvider extends Container
{
    public function register()
    {
        $this->directive('capitalize', function ($text) {
            return "<?php echo strtoupper($text) ?>";
        });
    }
}

And now we can call it in a blade file like

{{ capitalize('hello') }}

From Validation

We can validate from and can show error message in blade file very easily. To validate from , just assume we have two routes

<?php

use App\Core\Route;
use App\Http\Controllers\ExampleController;

Route::get('/register', [ExampleController::class, 'index']);
Route::post('/register', [ExampleController::class, 'store']);

And now we can update App\Http\Controllers\ExampleController.php like

<?php

namespace App\Http\Controllers;

use App\Core\Request;
use App\Core\Controllers\Controller;

class ExampleController extends Controller
{
    public function index()
    {   
        return view('user.index');
    }

    public function store(Request $request)
    {   
        $request->validate([
            'email' => 'required|email|unique:user|min:2|max:100', //unique:user -> here [user] is model
            'password' => 'required|min:2|max:100',
        ]);

        //save the data

        return redirect()->url('/test'); //or redirect()->back()
    }
}

Now update the resources/user/index.blade.php like

<!-- Showing All Error Messages -->
@if (session()->has('errors'))
    @foreach (session()->get('errors') as $error)
        @foreach ($error as $item)
            <li>{{ $item }}</li>
        @endforeach
    @endforeach
@endif

<form action="/register" method="post">
    @csrf
    <div class="mb-3">
        <label for="exampleInputEmail1" class="form-label">Email address</label>
        <input type="email" class="form-control" name="email">
        <!-- Show Specific Error Message -->
        @if (session()->has('email'))
            {{ session()->get('email') }}
        @endif
    </div>
    <div class="mb-3">
        <label for="exampleInputPassword1" class="form-label">Password</label>
        <input type="password" class="form-control" name="password">
        <!-- Show Specific Error Message -->
        @if (session()->has('password'))
            {{ session()->get('password') }}
        @endif
    </div>
    <button type="submit" class="btn btn-primary">Submit</button>
</form>

CSRF Token

If you submit a post request form, then you must be provide csrf_token with your request like below, otherwise it will throw an exception error.

<form action="/" method="post">
    @csrf
    <input type="submit" value="submit">
</form>

Collection & Macro

Like Laravel framework, in this MII framework, you can also work with Laravel collection and you can create your own custom macro. To create a custom macro, just update service provider App\Providers\AppServiceProvider.php like:

<?php

namespace App\Providers;

use App\Core\Container;
use Illuminate\Support\Collection;

class AppServiceProvider extends Container
{
    /**
     * register.
     *
     * Register any application services.
     * @return	void
     */
    public function register()
    {
        Collection::macro('toUpper', function () {
            return $this->map(function ($value) {
                return strtoupper($value);
            });
        });
    }
}

And now we can use it like:

<?php

use App\Core\Route;

Route::get('/', function () {

    $collection = collect(['first', 'second']);
    $upper = $collection->toUpper();

    return $upper; //output ["FIRST","SECOND"]
});

Session Flash Message

When we work with form submit then we need to show validation error message or success message. We can show session flash message very easily like

<?php

//Set the session flash value like
session->flash('key', 'value to be printed');

//Now you can print this value lie
if(session()->has('key')){
    echo session()->get('key');
}

Log

We can easily print important messages in a log file which is located inside storage\logs\mii.log. To print a message, mii provide logger() helper function, you just need to follow this

<?php

//logger() is a global helper function
logger()->info('Hello');

Database and Migration

MII allow you to create migration. To create migration, MII uses CakePHP's phinx. So to create a migration file first you need to update the configuration file environments array like:

config.php

<?php

return [
    'environments' => [
        'default_migration_table' => 'phinxlog',
        'your_database_name' => [
            'adapter' => 'mysql',
            'host' => 'localhost',
            'name' => 'your_database_name',
            'user' => 'your_database_username',
            'pass' => 'your_database_password',
            'port' => '3306'
        ]
    ]
];

Now run the below command in your project terminal like: php vendor/bin/phinx create Post -c config.php

Here Post is the model name.

Now this command will generate a migration file in the following path with the empty change() method.

app\database\migration\20231111144423_post.php

<?php

declare(strict_types=1);

use App\Core\Migration\Migration;

final class Post extends Migration
{
    /**
     * Change Method.
     *
     * Write your reversible migrations using this method.
     *
     * More information on writing migrations is available here:
     * https://book.cakephp.org/phinx/0/en/migrations.html#the-change-method
     *
     * Remember to call "create()" or "update()" and NOT "save()" when working
     * with the Table class.
     */
    public function change(): void
    {
        $table = $this->table('posts');

        $table->addColumn('title', 'string', ['limit' => 20])
            ->addColumn('body', 'text')
            ->addColumn('cover_image', 'string')
            ->addTimestamps()
            ->addIndex(['title'], ['unique' => true]);

        $table->create();
    }
}

Now run the migration command:

php vendor/bin/phinx migrate -c config.php.

Now see the documentation of phinx Documentation to learn more.

Database Seeder

MII allow you to create database seeder file to generate fake date. To create seeder, MII uses CakePHP's phinx. So to create a seeder file first you need run below command. Assume we are going to create PostSeeder:

Now run the below command in your project terminal like: php vendor/bin/phinx seed:create PostSeeder -c config.php

Here PostSeeder is the seeder class name.

Now this command will generate a seeder file in the following path with the empty run() method.

app\database\seeds\PostSeeder.php

<?php

declare(strict_types=1);

use Phinx\Seed\AbstractSeed;

class PostSeeder extends AbstractSeed
{
    /**
     * Run Method.
     *
     * Write your database seeder using this method.
     *
     * More information on writing seeders is available here:
     * https://book.cakephp.org/phinx/0/en/seeding.html
     */
    public function run(): void
    {   
        //you can use fake() helper here as well as your entire application 

        $data = [
            [
                'title'   => fake()->title(),
                'body'    => fake()->title(),
                'created_at' => date('Y-m-d H:i:s'),
            ]
        ];

        $posts = $this->table('posts');
        $posts->insert($data)
            ->saveData();

        // empty the table
        // $posts->truncate();
    }
}

Now run the seeder command:

php vendor/bin/phinx seed:run -c config.php.

Or you can run specific seeder class file lie

php vendor/bin/phinx seed:run -s PostSeeder -c config.php

Now see the documentation from phinx Documentation to learn more.