Worpress Basics

List of a few important functions for creating wordpress themes and plugins.

1. have_posts checks if the posts are available in wordpress database or not.
2. the_post takes the current item in the collections of posts and makes it available for use in the iteration of the loop.
3. the_id provides the id of the current post in the iteration.
4. the_content fetches the content of the current post in the iteration, filters it and displays it.
5. the_title provides the title of the current post

Additional post meta data:

1. the_category gives the category in which the post was posted.
2. previous_posts_link to move back to previous link
3. next_posts_link to move next post in the collection

Reference link is http://codex.wordpress.org/The_Loop_in_Action