exercise.php

<?php
/**
There is a code supporting calculation if a car is damaged.
Now it should be extended to support calculating if a painting of car's exterior is damaged (this means, if a painting of any of car details is not OK - for example a door is scratched).
 */
abstract class CarDetail {

    protected bool $isBroken;
    protected bool $isPaintingDamaged;

    public function __construct(bool $isBroken,bool $isPaintingDamaged=false)
    {
        $this->isBroken = $isBroken;
        $this->isPaintingDamaged = $isPaintingDamaged;
    }

    public function isBroken(): bool
    {
        return $this->isBroken;
    }
    public function isPaintingDamaged(): bool
    {
        return $this->isPaintingDamaged;
    }
}

class Door extends CarDetail
{

}

class Tyre extends CarDetail
{
}

class Car
{

    /**
     * @var CarDetail[]
     */
    private $details;

    /**
     * @param CarDetail[] $details
     */
    public function __construct(array $details)
    {
        $this->details = $details;
    }

    private function checkDamage(string $damage_name):bool
    {
        if(!method_exists($this, $damage_name)){
            throw new Exception('Method not exists');
        }

        foreach ($this->details as $detail) {

            if ($detail->$damage_name()) {
                return true;
            }
        }

        return false;
    }

    public function isBroken(): bool
    {
        return $this->checkDamage('isBroken');
    }

    public function isPaintingDamaged(): bool
    {
        return $this->checkDamage('isPaintingDamaged');
    }
}

$car = new Car([new Door(true,true), new Tyre(false)]);
// we pass a list of all details
/**
Expected result: an implemented code.
Note: you are allowed (and encouraged) to change anything in the existing code in order to make an implementation SOLID compliant
 */