WordPress News, Hacks, Tips, Tutorials, Plugins and Themes
Welcome to our 6th door of our Advent Calendar. 🙂
If you use widgets in your theme and this also accommodates a variety of hierarchies, you will quickly realize that it really only makes sense to output HTML for the widgets when the widget area is also used by the user.
Until now you had to use a query in your theme or a Plugin to adjust the design or the content according to a specific category. In version 2.9 the template hierarchy gets expanded and you can create with the help of a slug an own template.
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WordPress already offers the possibility of own functions to read feeds and use it in your blog. Since version 2.8 of WordPress, a new feature is in use for that. So there are two ways to work with feeds in WordPress, and in both functions, the data is cached. But this is not always wanted, so I show how to take influence on caching of the two functions.
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WordPress enjoys great popularity and draw more attention of people who want to gain unauthorized access. As with any open-source software developers and attackers alike can view the code. The risk of spam links, the destruction of the blog and other attacks is therefore very high. But this article shows the possibilities to secure WordPress in many ways.
WordPress makes it pretty easy to upload picture on posts and pages. Thereby are various data stored, which can be used.
Again and again, you can read tutorials on how to bring photos to posts, normally this is a solution via the custom fields. But there is a different and simpler solution, I think. The maintenance of custom fields is not always necessary.
Therefore, I would like to show some solutions that are, in my opinion, much better and can be expanded in many ways.
The WordPress database class is quite extensive and provides a range of methods to work effectively with the database and thereby use the WordPress standard.
You can find the class in /wp-includes/wp-db.php where the individual methods are documented.
I show the most important ones and give some small examples. It is important to work with these opportunities to ensure the safety of Plugins.