# vin0414/d-prwrf architecture

> Architecture diagram of the GitHub repository vin0414/d-prwrf, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-11-11). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/vin0414/d-prwrf
- Repository: https://github.com/vin0414/d-prwrf

## Overview

CodeIgniter 4 is a PHP full-stack web framework. Its principal runtime workflow accepts an HTTP request, constructs request state, matches configured routes, invokes a controller, and emits an HTTP response. The repository also provides database/model access, validation, sessions, filters, views, caching, REST support, and CLI commands. The graph follows documented and indexed relationships; unsampled subsystems are included as capabilities, but their internal call links are omitted where evidence is unavailable.

Main entry points: [`system/CodeIgniter.php`](https://github.com/vin0414/d-prwrf/blob/main/system/CodeIgniter.php) (Framework Runtime), [`app/Controllers/Home.php`](https://github.com/vin0414/d-prwrf/blob/main/app/Controllers/Home.php) (Home Controller), [`system/Router/Router.php`](https://github.com/vin0414/d-prwrf/blob/main/system/Router/Router.php) (Request Router), [`system/Controller.php`](https://github.com/vin0414/d-prwrf/blob/main/system/Controller.php) (Controller Base)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_runtime["HTTP Runtime"]
  node_entry["Public Entry<br/>[index.php]"]
  node_engine["Framework Runtime<br/>[CodeIgniter.php]"]
  node_request["Incoming Request"]
  node_router["Request Router<br/>[Router.php]"]
  node_routes["Route Collection"]
  node_autrouter["Auto Routing"]
  node_response["HTTP Response"]
end

subgraph group_app["Application Layer"]
  node_controller["Controller Base<br/>[Controller.php]"]
  node_appbase["App Controller Base<br/>[BaseController.php]"]
  node_home["Home Controller<br/>[Home.php]"]
  node_views["View Rendering<br/>[Parser.php]"]
end

subgraph group_data["Data and State"]
  node_database[("Database Layer<br/>[Database.php]")]
  node_models["Application Models"]
  node_session["Session State<br/>[Session.php]"]
end

subgraph group_capabilities["Framework Capabilities"]
  node_validation["Input Validation<br/>[Rules.php]"]
  node_filters["Request Filters<br/>[Filters.php]"]
  node_cache["Response Cache<br/>[ResponseCache.php]"]
  node_rest["REST Resources"]
end

subgraph group_cli["CLI Operations"]
  node_cli["Command Dispatcher<br/>[Commands.php]"]
end

node_user(("HTTP Client"))
node_cliuser(("CLI User"))

node_user -->|"sends request"| node_entry
node_entry -.->|"starts runtime"| node_engine
node_engine -->|"builds request"| node_request
node_engine -->|"dispatches routing"| node_router
node_router -->|"matches routes"| node_routes
node_router -->|"delegates fallback"| node_autrouter
node_routes -->|"maps handlers"| node_home
node_router -->|"invokes handler"| node_controller
node_home -->|"extends"| node_appbase
node_appbase -->|"extends"| node_controller
node_home -->|"queries data"| node_models
node_home -.->|"renders pages"| node_views
node_home -.->|"reads session"| node_session
node_controller -->|"runs validation"| node_validation
node_engine -->|"runs filters"| node_filters
node_engine -->|"checks cached response"| node_cache
node_engine -->|"returns response"| node_response
node_cliuser -.->|"runs command"| node_cli
node_cli -->|"uses framework"| node_engine
node_rest -->|"formats API response"| node_response
node_models -.->|"accesses database"| node_database

click node_entry "https://github.com/vin0414/d-prwrf/blob/main/public/index.php"
click node_engine "https://github.com/vin0414/d-prwrf/blob/main/system/CodeIgniter.php"
click node_request "https://github.com/vin0414/d-prwrf/blob/main/system/HTTP/IncomingRequest.php"
click node_router "https://github.com/vin0414/d-prwrf/blob/main/system/Router/Router.php"
click node_routes "https://github.com/vin0414/d-prwrf/blob/main/system/Router/RouteCollection.php"
click node_autrouter "https://github.com/vin0414/d-prwrf/blob/main/system/Router/AutoRouterImproved.php"
click node_controller "https://github.com/vin0414/d-prwrf/blob/main/system/Controller.php"
click node_appbase "https://github.com/vin0414/d-prwrf/blob/main/app/Controllers/BaseController.php"
click node_home "https://github.com/vin0414/d-prwrf/blob/main/app/Controllers/Home.php"
click node_views "https://github.com/vin0414/d-prwrf/blob/main/system/View/Parser.php"
click node_response "https://github.com/vin0414/d-prwrf/blob/main/system/HTTP/ResponseInterface.php"
click node_database "https://github.com/vin0414/d-prwrf/blob/main/system/Database/Database.php"
click node_models "https://github.com/vin0414/d-prwrf/tree/main/app/Models"
click node_session "https://github.com/vin0414/d-prwrf/blob/main/system/Session/Session.php"
click node_validation "https://github.com/vin0414/d-prwrf/blob/main/system/Validation/Rules.php"
click node_filters "https://github.com/vin0414/d-prwrf/blob/main/system/Filters/Filters.php"
click node_cache "https://github.com/vin0414/d-prwrf/blob/main/system/Cache/ResponseCache.php"
click node_rest "https://github.com/vin0414/d-prwrf/blob/main/system/RESTful/ResourceController.php"
click node_cli "https://github.com/vin0414/d-prwrf/blob/main/system/CLI/Commands.php"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_entry,node_engine,node_request,node_router,node_routes,node_autrouter,node_response,node_user,node_cliuser toneBlue
class node_controller,node_appbase,node_home,node_views toneAmber
class node_database,node_models,node_session toneMint
class node_validation,node_filters,node_cache,node_rest toneRose
class node_cli toneIndigo
```

## Components

### HTTP Runtime

- [Public Entry](https://github.com/vin0414/d-prwrf/blob/main/public/index.php): `public/index.php`
- [Framework Runtime](https://github.com/vin0414/d-prwrf/blob/main/system/CodeIgniter.php): `system/CodeIgniter.php`
- [Incoming Request](https://github.com/vin0414/d-prwrf/blob/main/system/HTTP/IncomingRequest.php): `system/HTTP/IncomingRequest.php`
- [Request Router](https://github.com/vin0414/d-prwrf/blob/main/system/Router/Router.php): `system/Router/Router.php`
- [Route Collection](https://github.com/vin0414/d-prwrf/blob/main/system/Router/RouteCollection.php): `system/Router/RouteCollection.php`
- [Auto Routing](https://github.com/vin0414/d-prwrf/blob/main/system/Router/AutoRouterImproved.php): `system/Router/AutoRouterImproved.php`
- [HTTP Response](https://github.com/vin0414/d-prwrf/blob/main/system/HTTP/ResponseInterface.php): `system/HTTP/ResponseInterface.php`

### Application Layer

- [Controller Base](https://github.com/vin0414/d-prwrf/blob/main/system/Controller.php): `system/Controller.php`
- [App Controller Base](https://github.com/vin0414/d-prwrf/blob/main/app/Controllers/BaseController.php): `app/Controllers/BaseController.php`
- [Home Controller](https://github.com/vin0414/d-prwrf/blob/main/app/Controllers/Home.php): `app/Controllers/Home.php`
- [View Rendering](https://github.com/vin0414/d-prwrf/blob/main/system/View/Parser.php): `system/View/Parser.php`

### Data and State

- [Database Layer](https://github.com/vin0414/d-prwrf/blob/main/system/Database/Database.php): `system/Database/Database.php`
- [Application Models](https://github.com/vin0414/d-prwrf/tree/main/app/Models): `app/Models`
- [Session State](https://github.com/vin0414/d-prwrf/blob/main/system/Session/Session.php): `system/Session/Session.php`

### Framework Capabilities

- [Input Validation](https://github.com/vin0414/d-prwrf/blob/main/system/Validation/Rules.php): `system/Validation/Rules.php`
- [Request Filters](https://github.com/vin0414/d-prwrf/blob/main/system/Filters/Filters.php): `system/Filters/Filters.php`
- [Response Cache](https://github.com/vin0414/d-prwrf/blob/main/system/Cache/ResponseCache.php): `system/Cache/ResponseCache.php`
- [REST Resources](https://github.com/vin0414/d-prwrf/blob/main/system/RESTful/ResourceController.php): `system/RESTful/ResourceController.php`

### CLI Operations

- [Command Dispatcher](https://github.com/vin0414/d-prwrf/blob/main/system/CLI/Commands.php): `system/CLI/Commands.php`

### Other components

- **HTTP Client**
- **CLI User**

## Connections

- HTTP Client → Public Entry: sends request
- Public Entry → Framework Runtime: starts runtime
- Framework Runtime → Incoming Request: builds request (evidence: `system/CodeIgniter.php`)
- Framework Runtime → Request Router: dispatches routing (evidence: `system/CodeIgniter.php`)
- Request Router → Route Collection: matches routes (evidence: `system/Router/Router.php`)
- Request Router → Auto Routing: delegates fallback (evidence: `system/Router/Router.php`)
- Route Collection → Home Controller: maps handlers (evidence: `app/Config/Routes.php`)
- Request Router → Controller Base: invokes handler (evidence: `system/Router/Router.php`)
- Home Controller → App Controller Base: extends (evidence: `app/Controllers/Home.php`)
- App Controller Base → Controller Base: extends (evidence: `app/Controllers/BaseController.php`)
- Home Controller → Application Models: queries data (evidence: `app/Controllers/Home.php`)
- Home Controller → View Rendering: renders pages
- Home Controller → Session State: reads session
- Controller Base → Input Validation: runs validation (evidence: `system/Controller.php`)
- Framework Runtime → Request Filters: runs filters (evidence: `system/CodeIgniter.php`)
- Framework Runtime → Response Cache: checks cached response (evidence: `system/CodeIgniter.php`)
- Framework Runtime → HTTP Response: returns response (evidence: `system/CodeIgniter.php`)
- CLI User → Command Dispatcher: runs command
- Command Dispatcher → Framework Runtime: uses framework (evidence: `system/CLI/Commands.php`)
- REST Resources → HTTP Response: formats API response (evidence: `system/RESTful/ResourceController.php`)
- Application Models → Database Layer: accesses database