Author

57class Author58{59    /**60     * Author's name61     *62     * @var string63     * @see get_name()64     */65    public $name;66 67    /**68     * Author's link69     *70     * @var string71     * @see get_link()72     */73    public $link;74 75    /**76     * Author's email address77     *78     * @var string79     * @see get_email()80     */81    public $email;82 83    /**84     * Constructor, used to input the data85     *86     * @param string $name87     * @param string $link88     * @param string $email89     */90    public function __construct($name = null, $link = null, $email = null)91    {92        $this->name = $name;93        $this->link = $link;94        $this->email = $email;95    }96 97    /**98     * String-ified version99     *100     * @return string101     */102    public function __toString()103    {104        // There is no $this->data here105        return md5(serialize($this));106    }107 108    /**109     * Author's name110     *111     * @return string|null112     */113    public function get_name()114    {115        if ($this->name !== null) {116            return $this->name;117        }118 119        return null;120    }121 122    /**123     * Author's link124     *125     * @return string|null126     */127    public function get_link()128    {129        if ($this->link !== null) {130            return $this->link;131        }132 133        return null;134    }135 136    /**