Restrict Content Pro, my plugin that allows you to easily run a premium subscription site with WordPress, has a very flexible registration form that is easy to add extra fields to. Want to add a field that stores extra information about the registering user? That’s easy! Want to add a new checkbox that users must…
In part three of the User Submitted Image Galleries series, we’re going to look at automatically creating our “guest” user account, and process the image uploads from the submission form. This is where our plugin really begins to take shape. After this section, we will get into actually displaying our images on the “gallery” page.…
When beginning writing plugins for WordPress, most developers will publish the fruits of their work in the official WordPress.org Plugin repository. It’s a great way to get into plugin development for your favorite CMS. I started this myself in June 2011 and so far it has gotten me lots of experience on how to code…
Nonces are used to add an extra layer of security to WordPress. They are typically used when submitting form data to ensure that the form is being submitted from where it’s supposed to. Nonce fields help us protect our forms from malicious attacks and non-authorized submissions. This tutorial will introduce you to using nonces in…
Filter hooks in WordPress provide a very powerful way to “alter” the output of functions. Using filters we can easily add extra HTML to some functions, and strip HTML from other functions. Some filters, such as the “body_class” filter, allow us to modify the class names of an HTML element, and some filters have nothing…
In this part of the User Submitted Image Galleries series we will look at setting up our custom image sizes and also the image submission form. In the previous part we registered out custom post types and taxonomies, and setup the basic structure of the plugin. This entry is part 2 of 9 in the…
Filter hooks are one of the the more powerful WordPress features that help to provide a huge amount of flexibility when it comes to modifying WordPress, including custom themes and plugins. There could easily be hundreds of different unique tutorials on how to use filters in themes and plugins, simply because of the huge array of…
In part one of the User Submitted Image Galleries tutorial series, I’m going to walk you through the beginning steps of setting up our User Image Gallery plugin. This is a plugin that will allow us to have a user-submitting gallery of images our website. If a user registered an logged-in, they will be able…
In this premium-members only tutorial, we’re going to take a brief look into working with the Mail Chimp API to create a newsletter sign up form for your WordPress site. The final result will be a complete plugin that you can install on any WordPress site to begin accepting email subscriptions to your Mail Chimp…
A few weeks ago, AJ Clarke of WP Explorer released a really slick photography theme called Fotos. Aside from just being a great theme, it also has a great feature that allows users to password protect their photo foto galleries. While developing the theme, AJ, who is a good friend of mine, asked me for…
A lot of plugins use the Featured Image feature for showing post thumbnails. My Better Recent Posts Widget Pro is a perfect example. It uses the Featured Image to display small thumbnails of the recent posts in widget areas. There’s one problem though. This feature only works if the currently active theme supports post thumbnails.…
The new admin bar, now named the tool bar, in WordPress 3.3 is great. It’s really well organized and cleans the dashboard up a lot. It’s also great for developers because adding new links to settings pages, documentation, or other useful links, is quite simple. In this quick tip, I’m going to show you how…
A few weeks ago I wrote a tutorial about creating front end registration and login forms. Now it’s time to create a very similar form, but for changing a logged-in user’s password. The process is really pretty simple, and quite similar.
The built-in WordPress gallery systems leaves much to be desired. It works well if a theme supports it, but it can be difficult to customize, especially if you have any special markup you’d like with the gallery. While working on a client’s theme, I wrote up a quick short code function that can be used…
It is pretty common knowledge that custom meta fields can be added to posts, pages and custom post types, but did you know that you can add custom meta fields to post tags, categories, and custom taxonomies as well? It’s actually pretty simple, though relatively undocumented. So in this quick tutorial I’m going to walk…
