add_feed( string $feedname, callable $function )

Add a new feed type like /atom1/.

Contents

Description Description

Parameters Parameters

$feedname

(string) (Required) Feed name.

$function

(callable) (Required) Callback to run on feed display.

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Return Return

(string) Feed action name.

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Source Source

File: wp-includes/rewrite.php 

function add_feed( $feedname, $function ) {
	global $wp_rewrite;

	if ( ! in_array( $feedname, $wp_rewrite->feeds ) ) {
		$wp_rewrite->feeds[] = $feedname;
	}

	$hook = 'do_feed_' . $feedname;

	// Remove default function hook
	remove_action( $hook, $hook );

	add_action( $hook, $function, 10, 2 );

	return $hook;
}

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Changelog Changelog

Changelog
Version Description
2.1.0 Introduced.

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Uses Uses

Uses
Uses Description
wp-includes/plugin.php: remove_action()

Removes a function from a specified action hook.
wp-includes/plugin.php: add_action()

Hooks a function on to a specific action.

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User Contributed Notes User Contributed Notes

  1. Skip to note 1 content
    You must log in to vote on the helpfulness of this noteVote results for this note: 2You must log in to vote on the helpfulness of this note
    Contributed by Steven Word —

    When a new custom feed is added, the endpoint will render using a `Content-Type: application/octet-stream; charset=UTF-8` by default. It would be useful to document working with content types in combination with add_feed().

    For example either:

    function add_custom_feed() {
	add_feed( 'custom', 'render_custom_feed' );
}
add_action( 'init', 'add_custom_feed' );

function render_custom_feed() {
	header( 'Content-Type: application/rss+xml' );
	echo 'aye!';
}

    or:

    function add_custom_feed() {
	add_feed( 'custom', 'render_custom_feed' );
}
add_action( 'init', 'add_custom_feed' );


function custom_feed_content_type( $content_type, $type ) {
	if( 'custom' == $type ) {
		$content_type = 'application/rss+xml';
	}
	return $content_type;
}
add_filter( 'feed_content_type', 'custom_feed_content_type', 10, 2 );

function render_custom_feed() {
	echo 'aye!';
}

    Expand full source codeCollapse full source code

    will work.

    See: https://core.trac.wordpress.org/ticket/36334

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