<?php

session_start();
include 'library.php';
function build_div($arr, &$build)
{
    foreach ($arr as $book) {
        $build .= '<div class="existingBook-add">';
        $build .= '<a>' . $book->get_title() . ' - </a>&nbsp';
        $build .= '<a>' . $book->get_author() . ' - </a>&nbsp';
        $build .= '<a>' . $book->get_id() . '</a><br>';
        //echo "\nBook: ".$book->get_title();
        //echo " / Author: ".$book->get_author();
        $id = $book->get_id();
        $build .= '<a class="loan-return-button" onclick="addbook_existing(' . $id . ')">Add new Copy</a>';
        $build .= '</div><br><br>';
    }
    return $build;
}
$lib = new Library();
$books = $lib->get_bookList();
$html = '<h3>Add a copy of an existing book</h3>';
build_div($books, $html);
echo $html;