PHP Context::Algorithm Examples

Example #1

File: Strategy.php Project: edin/php-design-patterns

class Strategy2 implements IStrategy
{
    function Move(Context $context) : int
    {
        $context->counter -= 1;
        return $context->counter;
    }
}
class Context
{
    private $strategy;
    public $counter = 0;
    public function setStrategy(IStrategy $strategy)
    {
        $this->strategy = $strategy;
    }
    public function Algorithm() : int
    {
        return $this->strategy->Move($this);
    }
}
$context = new Context();
$strategy1 = new Strategy1();
$strategy2 = new Strategy2();
$context->setStrategy($strategy1);
for ($i = 0; $i < 30; $i++) {
    if ($i == 15) {
        $context->setStrategy($strategy2);
    }
    echo "Counter = ", $context->Algorithm(), "\n";
}