如何减少PHP中if-else语句的数量？

interface Animal {
    public function makeSound();
}

class Dog implements Animal {
    public function makeSound() {
        echo "汪汪汪";
    }
}

class Cat implements Animal {
    public function makeSound() {
        echo "喵喵喵";
    }
}

interface SortStrategy {
    public function sort(array $data): array;
}

class BubbleSortStrategy implements SortStrategy {
    public function sort(array $data): array {
        // 冒泡排序算法
    }
}

class QuickSortStrategy implements SortStrategy {
    public function sort(array $data): array {
        // 快速排序算法
    }
}

interface State {
    public function handle(Context $context);
}

class StartState implements State {
    public function handle(Context $context) {
        // 开始状态处理逻辑
    }
}

class StopState implements State {
    public function handle(Context $context) {
        // 停止状态处理逻辑
    }
}