What are the potential pitfalls of using interfaces for all method hints in PHP, especially in terms of increased complexity and writing overhead?

Using interfaces for all method hints in PHP can lead to increased complexity and writing overhead. This approach may require creating multiple interfaces for different classes, making the codebase harder to maintain and understand. Additionally, it can result in redundant code and unnecessary abstractions, leading to decreased code readability.

// Instead of using interfaces for all method hints, consider using type hinting with specific classes or abstract classes to reduce complexity and writing overhead.

// Example:
class Animal {
    public function eat(Food $food) {
        // code for eating food
    }
}

class Dog extends Animal {
    // Dog specific methods
}

class Food {
    // Food properties and methods
}

$dog = new Dog();
$food = new Food();
$dog->eat($food);