Custom Fields are a form of meta-data that allows you to store arbitrary information with each WordPress post. While this does not sound so powerful, it is the single most powerful component of WordPress posts and content types (aka post types). This meta-data is handled with key/value pairs. The key is a “name” which identifies the specific field thus it is a constant and should stay the same for all posts however you can use the same key multiple times within one post. The value is the information that will be displayed for the field when you call it in your WordPress theme thus it can change with each post.
© 2011–2012 Powered by Tumblr
