{
return $result + $value;
}
}
class Subtractor implements CalculatorInterface
{
public function run($value, $result)
{
return $result - $value;
}
}
class Divider implements CalculatorInterface
{
public function run($value, $result)
{
return $result / $value;
}
}
class Multiplier implements CalculatorInterface
{
public function run($value, $result)
{
return $result * $value;
}
}
/**
* Calculation
*/
$c = new Calculator();
echo $c->setFunction(new Adder())->run(100, 97)->setFunction(new Subtractor())->run(117)->setFunction(new Adder())->run(20)->setFunction(new Divider())->run(5)->setFunction(new Multiplier())->run(17)->getResult();
