Intro to Laravel 5 - Speaker Deck

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A PHP Framework For Web Artisans

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Ben Edmunds @benedmunds http://benedmunds.com Who is this guy?

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Ben Edmunds Open Source Author PHP Town Hall Podcast CTO at Mindfulware Who is this guy?

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What is it? PHP Web Framework Full-stack (what does that even mean anymore) Open Source

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Who’s behind it? Taylor Otwell @taylorotwell

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I already use X. Why should I use Laravel?

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Why use it? Expressive Syntax Route::get(‘user/{id}’, function($id) { $user = User::ﬁnd($id); return view(‘home') ->with('user', $user); });

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Why use it? Utilizes the latest PHP features Namespaces PSR-4 Autoloading Interfaces IoC

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Why use it? Service Providers De-Coupled Flexible DRY Event Handling

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Why use it? Contracts = Groups of Interfaces Loose Coupling Testability Explicit Flexible

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Why use it? Facades = Quick Start $object = new class; $object->set('key', 'value'); Class::set('key', 'value');

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Why use it? Well Documented http://laravel.com/docs

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Why use it? Artisan CLI Tool $ php artisan migrate

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Why use it? Built on Composer http://packagist.com Entirely Modular PSR-2, PSR-3, PSR-4, PSR-7 Compliant

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Why use it? Test Coverage Focus on Testable Code

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Why use it? Full Stack Framework Full Stack Ecosystem

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Why use it? Homestead Pre-made Vagrant Box Nginx MySQL/PostgreSQL Beanstalkd Redis Memcached PHP / HHVM Node

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Why use it? PAAS to quickly deploy PHP apps to the “cloud” Digital Ocean Linode AWS

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Let’s do some comparisons

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Comparison MVC Design Lightweight Fast Excellent Docs Compatibility Technical Debt

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Comparison MVC Design Heavy but has Silex Slow-ish Complex Good Docs Modular Backed by SensioLabs

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Beyond MVC Design Easy to get started Consistent/Stable Fast Excellent Docs Threw out previous framework ideas and started over Comparison

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OK, I’ll try it. How do I get started?

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Download Composer Based Install $ composer create-project laravel/laravel --prefer-dist

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Structure Commands Providers Controller || Route || Both Middleware Services Views Model / Repository / FLEXIBILITY

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Structure app Commands Handlers Commands Events Http Controllers Middleware Requests Providers Services conﬁg resources views tests app Commands Console Events Handlers Commands Events Http Controllers Middleware Requests Providers Services bootstrap conﬁg database migrations seeds public package resources lang views storage cache logs meta sessions views work tests

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Routes

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Routes Create routes at: app/Http/routes.php include() additional route deﬁnitions if needed

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Routes What methods are available: Route::get(); Route::post(); Route::put(); Route::patch(); Route::delete(); Route::any(); //all of the above

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Routes Register multiple verbs for a single route: Router::match([‘get’, ‘post’], ‘/’, function(){ //this will run for both GET and POST });

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Routes app/Http/routes.php Route::get('/', function(){ echo ‘Boom!’; });

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Testing

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Testing Runs all tests located at: /tests/ $ php artisan test

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Testing app/Http/routes.php Route::get('/', function(){ echo ‘Boom!’; });

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Testing /tests/ExampleTest.php Test it! Test it good! class ExampleTest extends TestCase { function testBasicExample() { $this->visit('/') ->see(‘Boom!');

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Testing $ php artisan test Run it! PHPUnit 3.6.10 by Sebastian Bergmann. Conﬁguration read from ... Time: 0 seconds, Memory: 6.25Mb OK (1 test, 1 assertion) Output

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API?

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What about an API? Routes to the rescue!

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API app/Http/routes.php Route::get(‘api/user/{id}’, function($id){ return json_encode([ ‘user‘ => User::ﬁnd($id), ‘success‘ => true ]); });

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API app/Http/routes.php Route::get(‘api/user/{id}’, function($id){ return [ ‘user‘ => User::ﬁnd($id), ‘success‘ => true ]; });

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API /tests/api/UserTest.php class UserTest extends TestCase { public function testGetUser() { $this->get(‘/user/1') ->seeJson([ ‘success‘ => true ]);

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API Route::get(); Route::post(); Route::put(); Route::patch(); Route::delete();

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Controllers

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Controllers OK, routes are cool and all, but what if I want to use controllers?

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Controllers app/Http/routes.php Route::post('status', 'StatusController@create'); class StatusController extends Controller { public function create(Request $request) { … app/Http/controllers/StatusController.php

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Shit just got real

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Middleware

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Middleware Route Filters BETTER FASTER STRONGER Middleware!

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Middleware Popular Uses: Auth ACL Session Caching Debug Logging Analytics Rate Limiting

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Middleware Route::post('status', ‘StatusController@create’, [‘middleware’ => ‘auth’] );

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Middleware Route::post('status', ‘StatusController@create’, [‘middleware’ => [ ‘ﬁrst’, ‘second’, ‘third’, ]] );

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Middleware class AjaxMiddleware implements Middleware { public function handle($request, Closure $next) { if (!$request->ajax()) return response('Unauthorized.', 401); return $next($request); }

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Middleware Groups for DRY routing: Route::group(['middleware' => 'auth'], function(){ Route::get('/statuses', function(){ … }); …

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Database

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Database Query Builder Eloquent ORM Migrations Seeding

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Query Builder Simple and Easy to Understand Used extensively by Eloquent ORM

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Query Builder $user = DB::table('statuses') ->where(‘email’, '[email protected]’) ->ﬁrst(); Query Row by Email

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Query Builder $id = DB::table('statuses') ->insertGetId([ ‘user_id' => 1, 'email' => ‘[email protected]', 'text' => ‘Vegas Baby! #zendcon’, ]); Insert & Get ID

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Eloquent ORM Simple Expressive Efﬁcient

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Eloquent ORM use Illuminate\Database\Eloquent\Model; class Status extends Model { } Deﬁne an Eloquent model

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Eloquent ORM $status = App\Status::where(‘user_id’, 1) ->ﬁrst(); Simple query

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Eloquent ORM $statuses = App\Status::where(‘views', '>', 100) ->get(); Slightly more advanced query

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Eloquent ORM Relationships class Status extends Model { public function user() { return $this->belongsTo(‘App\User'); } } App\Status::ﬁnd(1)->user->email; Retrieve Status Creator Email

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Eloquent ORM Normal Usage $statuses = App\Status::all(); foreach ($statuses as $status) echo $status->user->email;

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Eloquent ORM Normal Usage $statuses = App\Status::all(); foreach ($statuses as $status) echo $status->user->email; SELECT * FROM "statuses" foreach result { SELECT * FROM "users" WHERE "id" = 1 } 100 statuses = 101 queries

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WTF!? ORMs Suck!

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Eloquent ORM $statuses = App\Status::with(‘user’)->get(); foreach ($statuses as $status) echo $status->user->email; Eager Loading FTW!

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Eloquent ORM $statuses = App\Status::with(‘user’)->get(); foreach ($statuses as $status) echo $status->user->email; 100 statuses = 2 queries SELECT * FROM "statuses" SELECT * FROM "users" WHERE "id" IN (1, 2, 3, 4, 5, ...) Eager Loading FTW!

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Eloquent ORM creating created updating updated saving saved deleting deleted restoring restored Events

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Views

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Views Route::get('/', function(){ return view('home.index'); //resources/views/home/index.blade.php }); Returning a view from a route

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Views Route::get('/', function(){ return view(‘home.index') ->with('email', '[email protected]'); Sending data to a view

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Views Sending data to a view with magic methods Route::get('/', function(){ $view = view('home.index'); $view->email = ‘[email protected]’; return $view;

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Views Blade Templates Email Address: {{ $email }}

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Views Blade Templates Email Address: {{ $email or ‘Please enter email’ }}

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Views Blade Templates @include(‘user.registration’)

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Form Requests

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Form Requests Designed just for form handling/validation class CreateStatusRequest extends FormRequest { public function rules() { return [ ‘email’ => ‘required|email', ‘text' => ‘required', ]; }

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Form Requests class StatusController extends Controller { public function create(CreateStatusRequest $request){ … }

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Facades

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Facades $var = Session::get('foo'); Resolves behind the scenes Getting a session variable

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Facades Controller Injection to the rescue! Managing Class Responsibilities?

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Facades class HomeController extends Controller { public function __construct(Request $request){ $value = $request->session()->get('key'); } Controller Injection

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Drama Da da DOM

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That’s a Wrap Utilizes the best PHP has to offer Well designed API with great docs Ready to scale architecture Go make cool things and have fun

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Community http://github.com/laravel/laravel http://docs.laravel.com http://forums.laravel.com

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Resources Dayle Rees - Code Bright Laravel: From Apprentice to Artisan LaraCasts

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THANKS! Ben Edmunds @benedmunds http://benedmunds.com https://joind.in/16662