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Description

Add a pingback url auto-discovery header for single posts, pages, or attachments.

Usage

$void = twenty_twenty_one_pingback_header();

Parameters

Returns

void

Source

File name: twentytwentyone/inc/template-functions.php
Lines:

function twenty_twenty_one_pingback_header() {
  if ( is_singular() && pings_open() ) {
    echo '<link rel="pingback" href="', esc_url( get_bloginfo( 'pingback_url' ) ), '">';
  }
}
 

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