When should you use WP_Query vs query_posts() vs get_posts()?

In WordPress, there are different ways to query posts and retrieve data from the database, including WP_Query, query_posts(), and get_posts().

Here are some general guidelines on when to use each:

• WP_Query: Use WP_Query when you need to retrieve posts based on complex and specific criteria, such as multiple taxonomies, custom fields, and post types. This is the most powerful and flexible method for querying posts in WordPress, but it can be a bit more complex to use than get_posts().
• query_posts(): It’s recommended to avoid using query_posts(). The query_posts() function is used to modify the main query loop, and it’s generally not recommended to use it as it can interfere with other plugins and themes, causing unexpected results. In most cases, you can achieve the same result with WP_Query or get_posts().
• get_posts(): Use get_posts() when you need to retrieve posts based on simple criteria such as category, author, or post status. It’s simpler and faster to use than WP_Query, and it returns an array of post objects that you can loop through and display on your website.

In summary, WP_Query is the most powerful and flexible method, but it’s also the most complex. get_posts() is simpler and faster, but it’s not as powerful as WP_Query. It’s recommended to avoid using query_posts() in most cases as it can cause unexpected results.