If you want to increase your brand’s value and its visibility on Twitter then you might want to have this nice PHP class for Niall Kennedy’s Twitter Cards tool. This class supports all Twitter Cards modes: summary, story, image, and video.

For those who still aren’t familiar with Twitter Cards, it’s basically an API that allows you to display a summary or a preview of your website’s content on your Twitter feed simply by providing links to it.

Do note that as of April 2013, Twitter Card requires whitelisting domains. Also, it does not anymore support the new properties of gallery (image[0-3]), app (Apple App Store and Google Play app IDs), or product (data[1|2],label[1|2]).

To find out more about Kennedy’s Twitter Card tool over at GitHub.

And also, are you a WordPress user? Great, because I’m happy to tell you that there’s a WP-plugin version also available called Twitter Cards Meta and it’s FREE (courtesy of WPDeveloper.net)! It now supports Photo & Summary Cards, and soon Player Card too.