<?php

class Book
{
    private $id;
    private $title;
    private $year;
    private $isbn;

    /**
     * @param $id
     * @param $title
     * @param $year
     * @param $isbn
     */
    public function __construct($id, $title, $year, $isbn)
    {
        $this->id = $id;
        $this->title = $title;
        $this->year = $year;
        $this->isbn = $isbn;
    }

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

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

    /**
     * @return mixed
     */
    public function getTitle()
    {
        return $this->title;
    }

    /**
     * @param mixed $title
     */
    public function setTitle($title)
    {
        $this->title = $title;
    }

    /**
     * @return mixed
     */
    public function getYear()
    {
        return $this->year;
    }

    /**
     * @param mixed $year
     */
    public function setYear($year)
    {
        $this->year = $year;
    }

    /**
     * @return mixed
     */
    public function getIsbn()
    {
        return $this->isbn;
    }

    /**
     * @param mixed $isbn
     */
    public function setIsbn($isbn)
    {
        $this->isbn = $isbn;
    }


}