interface Page { public function createPage(); } class BlogPage implements Page { public function createPage() { echo "Creating a blog page..."; } } class ProductPage implements Page { public function createPage() { echo "Creating a product page..."; } } class UserProfilePage implements Page { public function createPage() { echo "Creating a user profile page..."; } } class PageFactory { public static function createPage($pageType) { switch ($pageType) { case 'blog': return new BlogPage(); case 'product': return new ProductPage(); case 'profile': return new UserProfilePage(); default: return null; } } } $pageType = 'blog'; $page = PageFactory::createPage($pageType); $page->createPage();In this example, we have defined an interface for creating pages, as well as concrete classes for creating different types of pages. We have also created a page factory class that uses a switch statement to determine which type of page to create based on a supplied parameter. The PHP Page factory pattern is a useful design pattern for creating customizable, and modular web pages. This pattern is part of the package library which are common for building scalable web applications. Some popular package libraries for PHP include Laravel, Symfony, and CodeIgniter.