[PHP] 原型模式-创建型设计模式

abstract class BookPrototype
{
    protected string $title;
    protected string $category;
    abstract public function __clone();
    public function getTitle(): string
    {
        return $this->title;
    }
    public function setTitle(string $title)
    {
        $this->title = $title;
    }
}
class BarBookPrototype extends BookPrototype
{
    protected string $category = 'Bar';

    public function __clone()
    {
    }
}

$fooPrototype = new FooBookPrototype();

for ($i = 0; $i < 10; $i++) {
    $book = clone $fooPrototype;
    $book->setTitle('Foo Book No ' . $i);
}