A state machine implemetation in PHP. This implementation is mostly inspired from "Domain Specifi Languages" of Martin Flower.
State Machine in essential is a collection of State, Event and Transistion.
+---------+ +---------+
| | | |
| +---------------+ |
+---------+ +---------+
State1 Event target
In this implementation the description of a state machine could be written in yml.
An example state machine could be like:
Name: door
Start: "dc"
Event:
- ["close door", "CD"]
- ["open door", "OD"]
- ["open window", "OW"]
- ["close window", "CW"]
State:
- "dc"
- "do"
- "wo"
- "wc"
Transition:
- ["dc", "OD", "do"]
- ["do", "OW", "wo"]
- ["wo", "CW", "wc"]
- ["do", "CD", "dc"]
In '''Event''' block all events are listed in the format [name, code]. Code must be unique. This code is also used to drive the machine.
In '''State''' block all states are listed in the format "name".
In '''Transition''' block all transitions are listed in the format [startState, event, targetState].
The sample use of state machine and controller could be see in the test directory.
{
"require": {
"tiddr/state_machine": "dev-master"
}
}
Then just add
require_once __DIR__.'/vendor/autoload.php';
Take a look at the files under directory tests