获取父帖子关系链接。

原型

get_parent_post_rel_link( string $title = '%title' )

参数

$title (string) (Optional)  链接标题格式。

返回值

(string)  

源文件

路径:wp-includes/deprecated.php

<?php
...
function get_parent_post_rel_link( $title = '%title' ) {
	_deprecated_function( __FUNCTION__, '3.3.0' );
	if ( ! empty( $GLOBALS['post'] ) && ! empty( $GLOBALS['post']->post_parent ) )
		$post = get_post($GLOBALS['post']->post_parent);
	if ( empty($post) )
		return;
	$date = mysql2date(get_option('date_format'), $post->post_date);
	$title = str_replace('%title', $post->post_title, $title);
	$title = str_replace('%date', $date, $title);
	$title = apply_filters('the_title', $title, $post->ID);
	$link = "<link rel='up' title='";
	$link .= esc_attr( $title );
	$link .= "' href='" . get_permalink($post) . "' />n";
	return apply_filters( "parent_post_rel_link", $link );
}
...
?>

其他

英文文档:https://developer.wordpress.org/reference/functions/get_parent_post_rel_link/