Product.php

/// PRODUCT Data type

<?php

namespace App\DataTypes;

/**
 * class Product
 *
 * Represent the Product type for the shopbot
 *
 * @package App\DataTypes
 */
class Product extends PropertyAccessor
{
    /**
     * @var string
     */
    protected $sku;

    /**
     * @var string
     */
    protected $title;

    /**
     * @var string
     */
    protected $image;

    /**
     * @var string
     */
    protected $link;
}

/// Default Property Accessor class

namespace App\DataTypes;

/**
 * class PropertyAccessor
 *
 * Retrieve/changes any property of the class dynmically without the need for
 * setters & getters
 *
 * To set `foo` property for a class, just call `setFoo` method on object instance
 * where `Foo` first character will be converted to lowercase
 *
 * @package App\DataTypes
 */
abstract class PropertyAccessor
{
    /**
     * Set any property for the class dynamically
     *
     * @param string $name
     * @param mixed $value
     * @return $this
     */
    public function __call(string $name, $value)
    {
        if (substr($name, 0, 3) === 'set') {
            return $this->setProperty($name, $value);
        } else if (substr($name, 0, 3) === 'get') {
            return $this->getProperty($name);
        }
    }

    /**
    * Set any property for the class
    *
    * @param string $name
    * @param mixed $value
    * @return $this
    * @throws \App\Exception\InvalidSetterException
    */
    protected function setProperty(string $name, $value)
    {
        $property = lcfirst(str_replace('set', '', $name));

        if (property_exists($this, $property)) {
            $this->$property = array_shift($value);
            return $this;
        }

        throw new \Exception('Invalid Property Setter');
    }

    /**
     * Retrieve any property for the class dynamically
     *
     * @param string $name
     * @return mixed
     * @throws \App\Exception\InvalidGetterException
     */
    public function getProperty(string $name)
    {
        $property = lcfirst(str_replace('get', '', $key));
        
        if (property_exists($this, $property)) {
            return $this->$property;
        }

        throw new \Exception('Invalid Property Getter');
    }
}

@brentkelly Perfect, thanks.