An Advanced WordPress Search With WP_Query

In this article I’ll show you how to provide your WordPress installation with an advanced search system allowing the user to search and retrieve content from a specific custom post type, filtering results by custom taxonomy terms and multiple custom field values.

Read more on Smashing Magazine.

Creating Custom Post Meta Boxes in WordPress

Meta boxes are a useful feature in WordPress that allow you to add completely custom data to a post or page in WordPress.

In this tutorial, I’ll show you how to add your own custom meta boxes to a post edit screen. We’ll explore how to add and manage text fields, and radio buttons and checkboxes that will give users more advanced control over post meta data.

Read more on WPMU DEV blog.