wp_validate_user_request_key() – Validate a user request by comparing the key with the request’s key.
wp_generate_user_request_key() – Returns a confirmation key for a user action and stores the hashed version for future comparison.
_wp_keep_alive_customize_changeset_dependent_auto_drafts() – Make sure that auto-draft posts get their post_date bumped or status changed to draft to prevent premature garbage-collection.
EDD_API::api_key_backwards_copmat() – A Backwards Compatibility call for the change of meta_key/value for users API Keys
EDD_API::invalid_key() – Displays an invalid API key error if the API key provided couldn’t be validated
edd_upgrade_user_api_keys() – Upgrade the Usermeta API Key storage to swap keys/values for performance
_get_additional_user_keys() – Returns a list of meta keys to be (maybe) populated in wp_update_user().
wp_get_attachment_id3_keys() – Returns useful keys to use to lookup data from an attachment’s stored metadata.
wp_kses_post_deep() – Navigates through an array, object, or scalar, and sanitizes content for allowed HTML tags for post content.