Metadata (usermeta) (category)
| add_user_meta() | Adds metadata to the specified user. |
| delete_user_meta() | Deletes the specified meta-data of a certain user. |
| get_the_author_meta() | Retrieves the requested data of the current or requested user (post author). |
| get_user_meta() | Gets an single meta field or all meta fields of the specified user. |
| the_author_meta() | Outputs the specified meta-field of the current or specified user. The meta-data is specified in the profile. |
| update_user_meta() | Updates the meta-field of the specified user. |