$flyweightFactory = new FlyweightFactory();
$flyweightBookShelf1 = new FlyweightBookShelf();
$flyweightBook1 = $flyweightFactory->getBook(1);
$flyweightBookShelf1->addBook($flyweightBook1);
$flyweightBook2 = $flyweightFactory->getBook(1);
$flyweightBookShelf1->addBook($flyweightBook2);
writeln('test 1 - show the two books are the same book');
if ($flyweightBook1 === $flyweightBook2) {
writeln('1 and 2 are the same');
} else {
writeln('1 and 2 are not the same');
}
writeln('');
writeln('test 2 - with one book on one self twice');
writeln($flyweightBookShelf1->showBooks());
writeln('');
$flyweightBookShelf2 = new FlyweightBookShelf();
$flyweightBook1 = $flyweightFactory->getBook(2);
$flyweightBookShelf2->addBook($flyweightBook1);
$flyweightBookShelf1->addBook($flyweightBook1);
writeln('test 3 - book shelf one');
writeln($flyweightBookShelf1->showBooks());
writeln('');
writeln('test 3 - book shelf two');
writeln($flyweightBookShelf2->showBooks());
writeln('');
writeln('END TESTING FLYWEIGHT PATTERN');
function writeln($line_in)
{
echo $line_in . "<br/>";
}
