PHP code example of dddphp / state-machine

1. Go to this page and download the library: Download dddphp/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/ */

dddphp / state-machine example snippets


    $builder = StateMachineBuilderFactory::create();
    

    $builder->externalTransition()
        ->from(self::STATEA)
        ->to(self::STATEB)
        ->on(self::EVENTGoToB)
        ->when($this->checkCondition())
        ->perform($this->doAction());
    

    $builder->internalTransition()
        ->within(self::STATEA)
        ->on(self::INTERNAL_EVENT)
        ->when($this->checkCondition())
        ->perform($this->doAction());
    

    $builder->externalTransition()
            ->from(self::STATEC)
            ->to(self::STATED)
            ->on(self::EVENTGoToD)
            ->when(
                new class () implements ConditionInterface {
                    public function isSatisfied($context): bool
                    {
                        echo "Check condition : " . $context . "\n";
                        return true;
                    }
                    public function name(): string
                    {
                        return '';
                    }
                })
            ->perform(
                new class () implements ActionInterface {
                    public function execute($from, $to, $event, $context): void
                    {
                        echo $context . " from:" . $from . " to:" . $to . " on:" . $event;
                    }
                };
            );
    

    $stateMachine = $builder->build(self::MACHINE_ID);
    

    $target = $stateMachine->fire(self::STATE1, self::EVENT1, $this->context);