In what scenarios does object-oriented programming in PHP fail to provide the expected benefits, and how can these be mitigated?

One scenario where object-oriented programming in PHP may fail to provide expected benefits is when there is excessive class hierarchy, leading to overly complex and difficult-to-maintain code. This can be mitigated by following the principle of composition over inheritance, favoring smaller, more focused classes that can be easily composed together. 

// Example of using composition over inheritance to mitigate excessive class hierarchy

class Engine {
    public function start() {
        echo "Engine started";
    }
}

class Car {
    private $engine;

    public function __construct(Engine $engine) {
        $this->engine = $engine;
    }

    public function start() {
        $this->engine->start();
        echo "Car started";
    }
}

$engine = new Engine();
$car = new Car($engine);
$car->start();

Keywords

object-oriented programming PHP benefits scenarios mitigation

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