function get_article_issue_number($article_id) { // code to retrieve article information from database $issue_number = $article_data['issue_number']; return $issue_number; } $article_id = 123; $issue_number = get_article_issue_number($article_id); echo "The issue number of the article is: " . $issue_number;
use Illuminate\Support\Facades\Article; $article_id = 123; $article = Article::find($article_id); $issue_number = $article->issue_number; echo "The issue number of the article is: " . $issue_number;In example 1, we define a custom function to retrieve the issue number of an article. This function can be called from anywhere in our PHP code. In example 2, we use an external library (specifically, the Laravel framework's Article model) to retrieve the issue number of an article. This library provides a convenient way to interact with the database and retrieve article information. In both examples, the package/library used to retrieve the article information is not specified. However, it is likely that there is some kind of database or ORM (Object-Relational Mapping) package involved.