function getPublicationId($articleId) { // Code to fetch publication ID from database based on article ID return $publicationId; } $articleId = 123; $publicationId = getPublicationId($articleId); echo "Publication ID: ".$publicationId;
use MyPackage\Article; use MyPackage\Publication; $article = new Article(123); $publicationId = $article->getPublication()->getId(); echo "Publication ID: ".$publicationId;In this example, we are assuming the use of a package or library that contains classes for articles and publications. We create an instance of the Article class and pass in an article ID. We then use the getPublication() method to get an instance of the publication associated with that article, and finally we use the getId() method to get the ID of the publication. The returned value is then printed to the console. Package/Library: The package or library used in the second example is called MyPackage, and it contains classes for articles and publications. The specific implementation of the getPublicationId() function would depend on the implementation of the Article and Publication classes in this package.