How do you turn on debugging in WordPress?

How can one determine the post format of the current post in the loop?

What is the preferred way to programmatically make an HTTP API GET request from within WordPress?

To remove all the html tags from a string, so that only plain text is left, you'd rather

update_post_meta can be used in place of add_post_meta.

Who supports, maintains, and updates the WordPress core code available on WordPress.org?

If you are writing a custom query that will not be paginated, you should:

Where can the size limit for uploaded files be set?

When using WordPress multi-site, how you can get the ID of the current blog?

What action is used to modify the post query before it is run?

The optional /wp-contents/mu-plugins/ folder is used to add what type of plugins to a site?