9638b7e3c6
Rationale: 1. The principle of pingbacks is based on articles. Pingbacks are a special kind of comments and the article being 'pinged-back' has to be identifiable (which they're not on archive pages and the like). 2. WP only registers a ping if it can identify the article which is supposed to have been 'pung'. See: https://developer.wordpress.org/reference/classes/wp_xmlrpc_server/pingback_ping/ 3. Pingbacks, like comments, can be disabled on a per article basis. Therefore, having the pingback url auto-discovery header in place, only makes sense on singular pages where pings are open.
39 lines
953 B
PHP
39 lines
953 B
PHP
<?php
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/**
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* Custom functions that act independently of the theme templates.
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*
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* Eventually, some of the functionality here could be replaced by core features.
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*
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* @package _s
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*/
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/**
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* Adds custom classes to the array of body classes.
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*
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* @param array $classes Classes for the body element.
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* @return array
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*/
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function _s_body_classes( $classes ) {
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// Adds a class of group-blog to blogs with more than 1 published author.
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if ( is_multi_author() ) {
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$classes[] = 'group-blog';
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}
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// Adds a class of hfeed to non-singular pages.
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if ( ! is_singular() ) {
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$classes[] = 'hfeed';
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}
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return $classes;
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}
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add_filter( 'body_class', '_s_body_classes' );
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/**
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* Add a pingback url auto-discovery header for singularly identifiable articles.
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*/
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function _s_pingback_header() {
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if ( is_singular() && pings_open() ) {
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echo '<link rel="pingback" href="', bloginfo( 'pingback_url' ), '">';
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}
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}
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add_action( 'wp_head', '_s_pingback_header' );
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