1. Go to this page and download the library: Download szykra/state-machine library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
szykra / state-machine example snippets
$stateDraft = new State('draft');
$statePublished = new State('published');
$stateDraft->addTransition('publish', 'draft', 'published');
$transitionReject = new Transition('reject', 'published', 'rejected');
$statePublished->putTransition($transitionReject);
$stateMachine = new StateMachine();
// api inconsistent, should called putState
$stateMachine->addState($stateDraft);
$stateMachine->addState($statePublished);
$document = new Document();
$stateMachine->initialize($document);