What are the potential pitfalls of wrapping complex functionality in PHP classes?

One potential pitfall of wrapping complex functionality in PHP classes is that it can lead to overly bloated and convoluted class structures, making the code harder to maintain and understand. To solve this issue, it is important to follow the principles of SOLID design, specifically the Single Responsibility Principle, which states that a class should have only one reason to change.

class ComplexFunctionalityWrapper {
    private $dependency;

    public function __construct(Dependency $dependency) {
        $this->dependency = $dependency;
    }

    public function performTask() {
        // Implement the specific functionality here
    }
}

class Dependency {
    // Dependency class for handling specific tasks
}