Id Title Year Isbn "; foreach ($db -> getBooks() as $book) { echo ""; echo "" . $book -> getId() . ""; echo "" . $book -> getTitle() . ""; echo "" . $book -> getYear() . ""; echo "" . $book -> getIsbn() . ""; echo ""; } echo ""; echo "My preferred book is: ". $db -> getBook(1); $db -> createBook( new Book(0, "Misery", "1990", "9876542") ); $db -> createBooks([ new Book(0, "Moby Dick", "1851", "5497256"), new Book(0, "War and Peace", "1867", "9965743") ]); $db -> updateBook(new Book(1, "Invisible Man", "1897", "9876542")); $db -> updateBooks([ new Book(1, "Moby Dick", "1851", "5497256"), new Book(2, "War and Peace", "1867", "9965743") ]); $db -> deleteBook(1); $db -> deleteBooks(); ?>