Title: External | Page 3 of 3 | Developer.WordPress.org

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# @package: External

 * method[MagpieRSS::append_content()](https://developer.wordpress.org/reference/classes/magpierss/append_content/)
 * Used by [3 functions](https://developer.wordpress.org/reference/classes/magpierss/append_content/#used-by)
   | Uses [1 function](https://developer.wordpress.org/reference/classes/magpierss/append_content/#uses)
   | Source: [wp-includes/rss.php:287](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L287-L294)
 * method[MagpieRSS::append()](https://developer.wordpress.org/reference/classes/magpierss/append/)
 * Used by [2 functions](https://developer.wordpress.org/reference/classes/magpierss/append/#used-by)
   | Uses [1 function](https://developer.wordpress.org/reference/classes/magpierss/append/#uses)
   | Source: [wp-includes/rss.php:297](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L297-L339)
 * method[MagpieRSS::normalize()](https://developer.wordpress.org/reference/classes/magpierss/normalize/)
 * Used by [1 function](https://developer.wordpress.org/reference/classes/magpierss/normalize/#used-by)
   | Uses [2 functions](https://developer.wordpress.org/reference/classes/magpierss/normalize/#uses)
   | Source: [wp-includes/rss.php:341](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L341-L367)
 * method[MagpieRSS::is_rss()](https://developer.wordpress.org/reference/classes/magpierss/is_rss/)
 * Used by [1 function](https://developer.wordpress.org/reference/classes/magpierss/is_rss/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/classes/magpierss/is_rss/#uses)
   | Source: [wp-includes/rss.php:369](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L369-L376)
 * function[is_error()](https://developer.wordpress.org/reference/functions/is_error/)
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/is_error/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/functions/is_error/#uses)
   | Source: [wp-includes/rss.php:706](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L706-L708)
 * function[is_client_error()](https://developer.wordpress.org/reference/functions/is_client_error/)
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/is_client_error/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/functions/is_client_error/#uses)
   | Source: [wp-includes/rss.php:710](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L710-L712)
 * function[is_server_error()](https://developer.wordpress.org/reference/functions/is_server_error/)
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/is_server_error/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/functions/is_server_error/#uses)
   | Source: [wp-includes/rss.php:714](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L714-L716)
 * function[parse_w3cdtf()](https://developer.wordpress.org/reference/functions/parse_w3cdtf/)
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/parse_w3cdtf/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/functions/parse_w3cdtf/#uses)
   | Source: [wp-includes/rss.php:843](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L843-L883)
 * function[wp_rss()](https://developer.wordpress.org/reference/functions/wp_rss/)
 * Display all RSS items in a HTML ordered list.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_rss/#used-by)
   | Uses [5 functions](https://developer.wordpress.org/reference/functions/wp_rss/#uses)
   | Source: [wp-includes/rss.php:897](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L897-L918)
 * function[get_rss()](https://developer.wordpress.org/reference/functions/get_rss/)
 * Display RSS items in HTML list items.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/get_rss/#used-by)
   | Uses [2 functions](https://developer.wordpress.org/reference/functions/get_rss/#uses)
   | Source: [wp-includes/rss.php:938](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L938-L952)
 * class[MagpieRSS](https://developer.wordpress.org/reference/classes/magpierss/)
 * Used by [0 functions](https://developer.wordpress.org/reference/classes/magpierss/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/classes/magpierss/#uses)
   | Source: [wp-includes/rss.php:34](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L34-L399)
 * method[MagpieRSS::MagpieRSS()](https://developer.wordpress.org/reference/classes/magpierss/magpierss/)
 * PHP4 constructor.
 * Used by [0 functions](https://developer.wordpress.org/reference/classes/magpierss/magpierss/#used-by)
   | Uses [1 function](https://developer.wordpress.org/reference/classes/magpierss/magpierss/#uses)
   | Source: [wp-includes/rss.php:108](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L108-L110)
 * method[MagpieRSS::feed_start_element()](https://developer.wordpress.org/reference/classes/magpierss/feed_start_element/)
 * Used by [0 functions](https://developer.wordpress.org/reference/classes/magpierss/feed_start_element/#used-by)
   | Uses [2 functions](https://developer.wordpress.org/reference/classes/magpierss/feed_start_element/#uses)
   | Source: [wp-includes/rss.php:112](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L112-L221)
 * function[fetch_rss()](https://developer.wordpress.org/reference/functions/fetch_rss/)
 * Build Magpie object based on RSS from URL.
 * Used by [2 functions](https://developer.wordpress.org/reference/functions/fetch_rss/#used-by)
   | Uses [5 functions](https://developer.wordpress.org/reference/functions/fetch_rss/#uses)
   | Source: [wp-includes/rss.php:412](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L412-L536)
 * method[MagpieRSS::feed_cdata()](https://developer.wordpress.org/reference/classes/magpierss/feed_cdata/)
 * Used by [0 functions](https://developer.wordpress.org/reference/classes/magpierss/feed_cdata/#used-by)
   | Uses [2 functions](https://developer.wordpress.org/reference/classes/magpierss/feed_cdata/#uses)
   | Source: [wp-includes/rss.php:223](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L223-L233)
 * function[_fetch_remote_file()](https://developer.wordpress.org/reference/functions/_fetch_remote_file/)
 * Retrieve URL headers and content using WP HTTP Request API.
 * Used by [1 function](https://developer.wordpress.org/reference/functions/_fetch_remote_file/#used-by)
   | Uses [5 functions](https://developer.wordpress.org/reference/functions/_fetch_remote_file/#uses)
   | Source: [wp-includes/rss.php:550](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L550-L581)
 * function[_response_to_rss()](https://developer.wordpress.org/reference/functions/_response_to_rss/)
 * Retrieve
 * Used by [1 function](https://developer.wordpress.org/reference/functions/_response_to_rss/#used-by)
   | Uses [1 function](https://developer.wordpress.org/reference/functions/_response_to_rss/#uses)
   | Source: [wp-includes/rss.php:593](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L593-L631)
 * function[init()](https://developer.wordpress.org/reference/functions/init/)
 * Set up constants with default values, unless user overrides.
 * Used by [1 function](https://developer.wordpress.org/reference/functions/init/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/functions/init/#uses)
   | Source: [wp-includes/rss.php:643](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L643-L692)
 * function[is_info()](https://developer.wordpress.org/reference/functions/is_info/)
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/is_info/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/functions/is_info/#uses)
   | Source: [wp-includes/rss.php:694](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L694-L696)
 * function[is_success()](https://developer.wordpress.org/reference/functions/is_success/)
 * Used by [1 function](https://developer.wordpress.org/reference/functions/is_success/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/functions/is_success/#uses)
   | Source: [wp-includes/rss.php:698](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L698-L700)
 * function[is_redirect()](https://developer.wordpress.org/reference/functions/is_redirect/)
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/is_redirect/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/functions/is_redirect/#uses)
   | Source: [wp-includes/rss.php:702](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rss.php#L702-L704)

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