# State

An application state refers to an application with all the config, variables, objects and so forth previously stored. On runtime, the system loads an already made application state and performs tasks under this context.

The application state is made to be re-used. It allows to re-run the application without the expensive bootstrapping required to build the state from scratch.

# States in Chevere

Conventional PHP applications usually rely in just one state. For example, an index.php entry point serving under an HTTP web server. In Chevere we do the opposite, we build many entry points, known as application states.

🧔🏾 Each different state should be optimized to one single task

A Chevere application may have one state for public HTTP traffic, another state for background processing, another for logged users, etc. Each state is built around the same business, it just changes how it will be used.

# Working with States

# Conventions

The following conventions applies:

  • must exists isolated in its own unique folder at states/
  • must provide a load.php file (loads the state)
  • must provide a make.php file (makes the state)

The example belows shows hows a ./states tree looks like. Both web and api are application states.

├── web
│   ├── cache/
│   ├── load.php
│   ├── make.php
└── api
    ├── named-cache/
    ├── load.php
    └── make.php

# Learn By Example

The example at 03.Http/00.router-make.php creates an state at 03.Http/cache, which is used by all the other examples in that scope.

🧔🏾 The exact same state is used to showcase HTTP resolving, Swoole and RoadRunner examples