CodeIgniter 4.4の処理の流れをまとめました。

CodeIgniter 4.4 Process Flow

CodeIgniter 4.4 Process Flow

public/index.php

check PHP version

define constant FCPATH

instantiate Config\Paths

• Config\Paths
  • $systemDirectory
  • $appDirectory
  • $writableDirectory
  • $testsDirectory
  • $viewDirectory

load system/bootstrap.php

• system/bootstrap.php
  • define constants for directory paths
    • APPPATH
    • ROOTPATH
    • SYSTEMPATH
    • WRITEPATH
    • TESTPATH
  • load Config/Constants.php
  • load Common.php
  • load Autoloader
  • load Services
  • Services::autoloader()
    • instantiate Autoloader
    • initialize()
      • load Composer autoloader
    • register()
  • autoload helpers
    • instantiate FileLocator
    • load URL helper

instantiate DotEnv

• load .env file

define Environment

Services::codeigniter()

• instantiate Config\App
• instantiate CodeIgniter

initialize CodeIgniter

• CodeIgniter::initialize()
  • load Environment bootstrap
  • Services::exceptions()
    • initialize()
      • set Exception/Error handler
  • check missing required PHP extensions
  • set default locale (Locale::setDefault())
  • set default timezone
  • initialize Kint
• CodeIgniter::setContext()

CodeIgniter::run()

• Services::createRequest()
  • Services::incomingrequest()
    • Services::uri()
      • Services::siteurifactory()
        • instantiate SiteURIFactory
      • SiteURIFactory::createFromGlobals()
        • detectRoutePath()
          • update superglobals
            • update $_SERVER
            • update $_GET
        • instantiate SiteURI
    • instantiate UserAgent
    • instantiate Request
      • IncomingRequest::__construct()
        • detectLocale()
          • if $negotiateLocale is true
            • get lang from content negotiation
            • setLocale()
              • set locale in Request
              • set default locale (Locale::setDefault())
• instantiate Response
• spoof request method
• CodeIgniter::handleRequest()
  • force secure access
  • Event pre_system
  • check Page Cache
  • tryToRouteIt()
    • instantiate Route
    • instantiate Route
    • get Controller and method nam
    • get locale from rout
      • if route contains local
        • Request::setLocale(
          • set locale in Reques
          • set default locale (Locale::setDefault()
    • get Route Filters Info
  • instantiate Filters
  • enable Controller Filters
  • run before Filters
  • run Controller
    • run Closure controller
    • or
      • instantiate Controller
      • Event post_controller_constructor
      • run Controller method
  • gather output
  • run after Filters
  • Event post_system
  • return Response object
• send response

関連

• CodeIgniter 4.3の処理の流れ
• CodeIgniter 4.1の処理の流れ