class FirstConcreteStrategy implements StrategyInterface
{
public function algorithm()
{
echo 'first strategy algorithm';
}
}
class SecondConcreteStrategy implements StrategyInterface
{
public function algorithm()
{
echo 'second strategy algorithm';
}
}
class Context
{
protected $strategy;
public function __construct(StrategyInterface $strategy)
{
$this->strategy = $strategy;
}
public function executeStrategy()
{
return $this->strategy->algorithm();
}
}
$context = new Context(new FirstConcreteStrategy());
$context->executeStrategy();
$context = new Context(new SecondConcreteStrategy());
$context->executeStrategy();
