Get the Article ID in J4.0

Question

I am trying Joomla 4.
My biggest problem is to migrate the get article id functionality.

In Joomla 3.x, I used:

defined('_JEXEC') or die;    
$id= JRequest::getInt('id');

but this is not longer supported. So I now use:

use Joomla\CMS\Factory;
$app = Factory::getApplication();
$id   = $app->input->getCmd('id', '');

Is this really the best way to get the article id inside a PHP script?

Answer 1

Just to clarify, inside the article view, you can get the ID of the article:

$app = Factory::getApplication();
if (
    $app->input->get('option') === 'com_content'
    && $app->input->get('view') === 'article'
) {
    // Get the article ID
    $article_id = $app->input->getInt('id');
}

If you use the previous code inside a blog view, what you will get is the category ID.

Inside the blog view, you cant get the ID of a specific article just like before. In the blog view, you will need get the articles that category have, and then loop over them to do any task you want to accomplish. For this you will need build a query, something like:

$app = Factory::getApplication();
$factory = $app->bootComponent('com_content')->getMVCFactory();

// Get an instance of the generic articles model
$articles = $factory->createModel('Articles', 'Site', ['ignore_request' => true]);

// Get all the articles of a specific category, where $catid hold the ID of the category from where you want the articles
$articles->setState('filter.category_id', $catid);

You can apply others filters to that query as you need. When you get the articles from that query, then is when you can loop on each article and accomplish any task you want to do.