<?php
/* phpFinal.php */

class myBooks {
    public $books = "";
}

class aBook {
    public $title = "";
    public $author = "";
}

$book0 = new aBook();
$book0->title = "The Art of Computer Programming";
$book0->author = "Knuth";
$book1 = new aBook();
$book1->title = "Visual Explanations";
$book1->author = "Tufte";
$book2 = new aBook();
$book2->title = "Web Style Guide";
$book2->author = "Lynch & Horton";
$allBooks = new myBooks ();
$allBooks->books = array ($book0, $book1, $book2);

echo json_encode($allBooks);
?>