Per Your Request

How does Laravel 4 work? What precisely happens when a user loads index.php? Per Your Request walks through Laravel's entire request cycle, and shows you what happens when.

1. Pe You Request @kennymeyers thenerdary.net
2. Request Cycle. Everything that happens (classes loaded, patterns invoked, etc.)
3. 4 Phase of Laravel Loading
4. It a begin with index.ph /public/index.php
5. Phase 1: Autoloadin’
6. Autoloadin‘ Application Bootstrapped Run 1. LARAVEL_START constant is set 2. index.php requires /bootstrap/autoload.php 3. bootstrap.php requires composer’s /vendor/ autoload file 4. Register Laravel’s custom ClassLoader 5. Register the workbench’s autoload files Phase I Commence
7. LARAVEL_START global is set Autoloadin‘ Application Bootstrapped Run Grrrrreat! for benchmarking your code
8. index.php requires /bootstrap/autoload.php /public/index.php Autoloadin‘ Application Bootstrapped Run
9. autoload.php requires Composer’s autoload /bootstrap/autoload.php Autoloadin‘ Application Bootstrapped Run
10. Derp, derp composer derp. Derp derp PyroCMS Phil’s got your back on composer
11. All classes are ultimately loaded via The worst named function since [Java or C joke] Autoloadin‘ Application Bootstrapped Run
12. spl_autoload_registe i a queue
13. Register Laravel’s custom autoloader /bootstrap/autoload.php Autoloadin‘ Application Bootstrapped Run
14. ClassLoader::register() Illuminate\Support\ClassLoader ClassLoader::load() Autoloadin‘ Application Bootstrapped Run
15. Workbench autoloading /bootstrap/autoload.php Autoloadin‘ Application Bootstrapped Run
16. Illuminate\Workbench\Starter Starter::start($workbench) Autoloadin‘ Application Bootstrapped Run
17. Finder Class Symfony\Component\Finder Implements Countable, IteratorAggregate Traverses a given directory and returns an array of objects with some lovely file metadata Autoloadin‘ Application Bootstrapped Run
18. Illuminate\Workbench\Starter Starter::start($workbench) Autoloadin‘ Application Bootstrapped Run Get all autoload.php files in the workbench folder
19. Illuminate\Workbench\Starter Autoloadin‘ Application Bootstrapped Run Starter::start($workbench)
20. Filesystem Class wrapper for common operations Illuminate\Workbench\Starter Autoloadin‘ Application Bootstrapped Run Filesystem::requireOnce()
21. Phase I Complete Autoloadin‘ Application Bootstrapped Run 1. LARAVEL_START constant is set 2. index.php requires /bootstrap/autoload.php 3. bootstrap requires composer’s /vendor/autoload file 4. Register Laravel’s custom ClassLoader 5. Register the workbench’s autoload files
22. Phase 2: A lication
23. /public/index.php We RETURN to index.php Autoloadin‘ Application Bootstrapped Run
24. Autoloadin‘ Application Bootstrapped Run 1. Require /bootstrap/start.php 2.Create a new instance of Illuminate\Foundation \Application 3. This creates the request object and registers 3 ServiceProviders 4. Detect and set the environment 5. Bind our application filepaths to the Application object 6. Require the Foundation start.php file via Application::getBootstrapFile() Phase 2 Commence
25. /public/index.php Laravel requires /bootstrap/start.php Autoloadin‘ Application Bootstrapped Run
26. /bootstrap/start.php BEHOLD! INSTANTIATION! Autoloadin‘ Application Bootstrapped Run
27. THE LARAVEL APPLICATION HAS BEGUN! Autoloadin‘ Application Bootstrapped Run
28. Illuminate\Foundation\Application Container Autoloadin‘ Application Bootstrapped Run
29. Illuminate\Foundation\Container Four methods to know Autoloadin‘ Application Bootstrapped Run Container::share() Container::instance() Container::bind() Container::make()
30. Illuminate\Foundation\Container Container::share() Autoloadin‘ Application Bootstrapped Run
31. Illuminate\Foundation\Container Container::instance() Autoloadin‘ Application Bootstrapped Run
32. Illuminate\Foundation\Container Container::bind() Autoloadin‘ Application Bootstrapped Run
33. Illuminate\Foundation\Container Container::make() Autoloadin‘ Application Bootstrapped Run
34. \Illuminate\Container\Container Implements ArrayAccess Autoloadin‘ Application Bootstrapped Run
35. ArrayAccess lets us do this: Autoloadin‘ Application Bootstrapped Run Which calls Application::offsetSet()
36. __construct() Autoloadin‘ Application Bootstrapped Run Illuminate\Foundation\Application
37. Illuminate\Foundation\Application Application::register() Autoloadin‘ Application Bootstrapped Run
38. Illuminate\Exception\ExceptionServiceProvider ExceptionServiceProvider::register() Autoloadin‘ Application Bootstrapped Run
39. /bootstrap/start.php Laravel sets the $env variable Autoloadin‘ Application Bootstrapped Run
40. /bootstrap/start.php Binds install paths Binds install paths Autoloadin‘ Application Bootstrapped Run
41. /bootstrap/start.php Loads the Iluminate/Foundation/start.php file via Application::getBootstrapFile() Autoloadin‘ Application Bootstrapped Run
42. Keeps things clean with composer Autoloadin‘ Application Bootstrapped Run
43. Autoloadin‘ Application Bootstrapped Run Phase 2 Complete 1. Require /bootstrap/start.php 2.Create a new instance of Illuminate\Foundation \Application 3. This creates the request object and registers 3 ServiceProviders 4. Detect and set the environment 5. Bind our application filepaths to the Application object 6. Require the Foundation start.php file via Application::getBootstrapFile()
44. Phase 3: B tstra ed
45. 1. Set the $env var if we’re running tests 2. Setup the Facade 3. Load the config files 4. Set the default timezone 5. Register the alias loader 6. Allow for PUT and DELETE requests with forms 7. Create the provider repository 8. Boot ServiceProviders with Application::boot() 9. Require the /app/start/global.php file 10. Require the /app/start/$env.php file 11. Require the /app/routes.php file Phase 3 Commence Autoloadin‘ Application Bootstrapped Run
46. Testin’ check. Autoloadin‘ Application Bootstrapped Run /vendor/laravel/framework/src/Illuminate/Foundation/start.php
47. First, let’s turn off error handling and report all errors Autoloadin‘ Application Bootstrapped Run
48. Boom. Autoloadin‘ Application Bootstrapped Run /vendor/laravel/framework/src/Illuminate/Foundation/start.php
49. Next, let’s lie to people about the classnames they’re using. Autoloadin‘ Application Bootstrapped Run
50. Boom. Facade engaged. Autoloadin‘ Application Bootstrapped Run /vendor/laravel/framework/src/Illuminate/Foundation/start.php
51. After that, let’s make sure we can load config files, maybe with some sort of callback Autoloadin‘ Application Bootstrapped Run
52. Oh, look at that. Autoloadin‘ Application Bootstrapped Run /vendor/laravel/framework/src/Illuminate/Foundation/start.php
53. Fileloader Handles Laravel config syntax Autoloadin‘ Application Bootstrapped Run
54. Oh $#@*! Let’s turn on exception handling, we may start causing them. Autoloadin‘ Application Bootstrapped Run /vendor/laravel/framework/src/Illuminate/Foundation/start.php
55. Load the app config Autoloadin‘ Application Bootstrapped Run /vendor/laravel/framework/src/Illuminate/Foundation/start.php
56. ...and please stop showing that warning PHP, you jerk. Autoloadin‘ Application Bootstrapped Run /vendor/laravel/framework/src/Illuminate/Foundation/start.php
57. Load aliases Autoloadin‘ Application Bootstrapped Run /vendor/laravel/framework/src/Illuminate/Foundation/start.php
58. Adds PUT, DELETE methods Autoloadin‘ Application Bootstrapped Run /vendor/laravel/framework/src/Illuminate/Foundation/start.php
59. QUICK! We need a place to store ALL our service providers! Autoloadin‘ Application Bootstrapped Run /vendor/laravel/framework/src/Illuminate/Foundation/start.php
60. THE MANIFEST A JSON file that sits in /app/storage/meta Autoloadin‘ Application Bootstrapped Run
61. Now, iterate through our registered service providers Calling the boot() method on each Autoloadin‘ Application Bootstrapped Run /vendor/laravel/framework/src/Illuminate/Foundation/start.php
62. AuthServiceProvider::boot() Autoloadin‘ Application Bootstrapped Run Illuminate\Support\ServiceProvider
63. The Application will also fire any registered call backs upon boot completion Autoloadin‘ Application Bootstrapped Run Illuminate\Foundation\Application
64. Unleash the /app/start/global.php file Autoloadin‘ Application Bootstrapped Run /vendor/laravel/framework/src/Illuminate/Foundation/start.php
65. Unleash the /app/start/{$env}.php file Autoloadin‘ Application Bootstrapped Run /vendor/laravel/framework/src/Illuminate/Foundation/start.php
66. Get the routes.php file Autoloadin‘ Application Bootstrapped Run /vendor/laravel/framework/src/Illuminate/Foundation/start.php
67. 1. Set the $env var if we’re running tests 2. Setup the Facade 3. Load the config files 4. Set the default timezone 5. Register the alias loader 6. Allow for PUT and DELETE requests with forms 7. Create the provider repository 8. Boot ServiceProviders with Application::boot() 9. Require the /app/start/global.php file 10. Require the /app/start/$env.php file 11. Require the /app/routes.php file Phase 3 Complete Autoloadin‘ Application Bootstrapped Run
68. Return to /bootstrap/start.php Autoloadin‘ Application Bootstrapped Run
69. Which returns our $app object to... Autoloadin‘ Application Bootstrapped Run
70. INDEX.PHP!!!!! For the grand finale Autoloadin‘ Application Bootstrapped Run
71. Part 4: Run
72. 1. Run the app 2. Set the session store if it exists 3. Find the route 4. Run the route code, calling filters where applicable (ex: before and after) 5. Generate a Response object 6. Send the response 7. Call the after filter Autoloadin‘ Application Bootstrapped Run Phase 4 Commence
73. Autoloadin‘ Application Bootstrapped Run /public/index.php
74. Application::run() Autoloadin‘ Application Bootstrapped Run Illuminate\Foundation\Application
75. Sets the session store Autoloadin‘ Application Bootstrapped Run Illuminate\Foundation\Application Application::prepareRequest()
76. Finds the route and runs it Autoloadin‘ Application Bootstrapped Run Illuminate\Routing\Router Router::dispatch() (Calls the global before filter right before this)
77. Create a Symfony Response object Autoloadin‘ Application Bootstrapped Run Illuminate\Routing\Router Router::prepare()
78. Sends the response to the browser Autoloadin‘ Application Bootstrapped Run Illuminate\Foundation\Application Application::run()
79. Calls the finish filter Autoloadin‘ Application Bootstrapped Run Illuminate\Routing\Router
80. Autoloadin‘ Application Bootstrapped Run Illuminate\Routing\Router Phase 4 Complete 1. Run the app 2. Set the session store if it exists 3. Find the route 4. Run the route code, calling filters where applicable (ex: before and after) 5. Generate a Response object 6. Send the response 7. Call the after filter
81. “I’m finished!” @kennymeyers thenerdary.net