Company.php

<?php

namespace App;

class Company extends Entity
{    

    /**    
     * @var int
     */
    protected $id;

    /**     
     * @var string
     */
    private $name;

    /**
     * @return int
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * @param  int $id
     * @return void
     */
    public function setId($id)
    {
        $this->id = $id;
    }

    /**     
     * @return string
     */
    public function getName()
    {
        return $this->name;
    }

    /**
     * @param  string $name
     * @return void
     */
    public function setName($name)
    {
        $this->name = $name;
    }    

}

Entity.php

<?php

namespace App;

use ReflectionClass;
use JsonSerializable;
use Illuminate\Contracts\Support\Jsonable;
use Illuminate\Contracts\Support\Arrayable;

abstract class Entity implements Arrayable, Jsonable, JsonSerializable
{
    /**
     * 
     * @var array
     */
    protected $hidden = [];

    /**
     * Convert the object to array.
     * 
     * @return array
     */
    public function toArray()
    {
        return $this->getAttributes();
    }

    /**
     * Convert the model instance to JSON.
     * 
     * @return string
     */
    public function toJson($options = 0)
    {
        return json_encode($this->getAttributes(), $options);
    }

    /**
     * Convert the object into something JSON serializable.
     * 
     * @return array
     */
    public function jsonSerialize()
    {
        return $this->toArray();
    }

    /**
     * Get object attributes exclude in hidden attribute.
     * 
     * @return array
     */
    private function getAttributes()
    {
        $reflection = new ReflectionClass(static::class);

        $attributes = [];

        foreach ($reflection->getProperties() as $property) {
            $property->setAccessible(true);
            
            if ($property->name != 'hidden' && ! in_array($property->name, $this->hidden)) {
                $value = $property->getValue($this) ?: '';
                $attributes[$property->name] = $value;
            }            
        }

        return $attributes;
    }
}

test.php

<?php

use App\Company;

$company = new Company;
$company->setId(1);
$company->setName('Awesome Inc.');

// return $company->toArray();
// return $company;