The project directory structure

The project directory structure is the layout of your project. It is made up of folders and files. This structure matters for the project to work properly.

Here is the project directory structure:

├── app
│   ├── Config
│   │   ├── commands.yaml
│   │   └── routes.yaml
│   ├── Controller
│   └── Template
│       ├── base.html.twig
│       └── error
│           ├── http-404.html.twig
│           ├── http-405.html.twig
│           └── http-Default.html.twig
├── bin
│   └── edu (Command line)
├── public
│   └── index.php
├── tests (Unit tests, optional)
│   └── bootstrap.php
├── var
│   ├── dbdata (MySQL service data)
│   ├── dbgate (dbgate service configuration)
│   ├── logs (SQLite database of the server logs)
│   └── sqlite (Application SQLite databases)
├── vendor
│   └── [...] (Libraries)
├── .env
├── .env.example
├── .gitignore
├── compose.yaml
├── composer.json
├── phpunit.xml (Test configuration, optional)
├── README.md
└── LICENSE

Directory structure in detail

Here is the project directory structure in detail:

Folder / File	Description
app	Folder containing the application files
app/Config	Folder containing the configuration files
app/Config/commands.yaml	Command configuration file
app/Config/routes.yaml	Route configuration file
app/Controller	Folder containing the "Controller" classes
app/Command	Folder containing the "Command" classes
app/Template	Folder containing the template files
app/Template/base.html.twig	Base template file
app/Template/error	Folder containing the error template files
app/Template/error/http-404.html.twig	Template file for the 404 error page
app/Template/error/http-405.html.twig	Template file for the 405 error page
app/Template/error/http-Default.html.twig	Template file for the default error page
bin/edu	Edu command-line folder
public	Folder containing the public files
public/index.php	Application startup file (Endpoint)
tests	Unit tests folder (PHPUnit)
phpunit.xml	PHPUnit configuration file
var	Folder containing variable data (databases, logs, configuration)
var/dbdata	MySQL service data (Docker volume)
var/logs	SQLite database core_logs.sqlite of the development server logs
var/sqlite	Application SQLite databases
vendor	Folder containing the libraries
.env	Application configuration file
.env.example	Example application configuration file
.gitignore	GIT configuration file, to exclude files or folders
compose.yaml	Docker configuration files
composer.json	Composer configuration file
README.md	Project description file
LICENSE	Project license file