Post meta (custom fields) (category)
| add_post_meta() | Adds meta field to the specified post. |
| delete_post_meta() | Deletes all custom fields (meta-fields) with the specified key for the specified post. |
| get_post_custom() | Gets a multidimensional array with data from all custom fields of the current post. |
| get_post_custom_keys() | Gets an array of keys of custom fields belonging to the current post. |
| get_post_custom_values() | Gets an array of values of custom fields with the specified name for the specified post. |
| get_post_meta() | Gets the value of the specified custom field of the post. Also can get an array of all post meta fields. |
| register_post_meta() | Registers a meta key for posts (post custom field). |
| the_meta() | Outputs custom fields of a post (metadata from wp_postmeta). The fields are displayed in a list <li>. Hidden fields are ignored. |
| update_post_meta() | Updates specified meta field of specified post. Or adds it, if it's not exists. |