这个问题的初衷是要知道一个帖子是从哪里来的，然后根据这个帖子，根据帖子推荐人提供下一个和前一个帖子。

例如，我想完成的是：

从类别、分类法、标记、搜索或作者存档页面单击一篇文章。这些档案作为参考资料。现在，通常人们会使用，就像我的问题一样，wp_get_referer() 获得该推荐人并在进一步查询中使用。如所述@G.M. in his accepted answer above, 这种方法不可靠，所以我去用了他的Alternative Solution.

另一个问题是需要使用某种cookie或会话来存储此引用，这样，当您离开从特定存档中单击的原始单篇帖子时，您仍然可以从原始引用者中弹出帖子。由于Cookie也由最终用户控制，因此不可靠，而且WordPress默认不使用会话，因此我使用@G.M重构了下一个和上一个帖子链接。Alternative Solution 以可靠的方式检查和存储我的原始推荐人。

这就是我想到的，我希望在不久的将来有人会发现它有用。请使用和滥用代码以满足您的需要，只需一个请求：留下一个指向此问题的链接。：-）

关于要遵循的代码的注释这段代码很长而且很密集，所以我不打算详细介绍。代码已被很好地注释

与默认设置一样，此代码可以在同一期限内的帖子之间翻页next_post_link() 和previous_post_link() WordPress中的函数。就像本机函数一样，您必须设置分类法。的默认值in_same_term 是true 分类法是category

最重要的是，此代码需要PHP 5.4+

代码

<?php
/**
 * @author Pieter Goosen
 * @license GPLv2 
 * @link http://www.gnu.org/licenses/gpl-2.0.html
 *
 * The functions on this page returns the next and previous post links
 * depending on what has been set
 *
 * @return function single_post_navigation()
*/ 

/**
 * Register six new query variables aq, ,cq, tq, ttq, taq, and sq set by 
 * the term_referer_link function
 *
 * @see http://codex.wordpress.org/WordPress_Query_Vars
 *
*/ 
add_filter( \'query_vars\', function ( $vars ) {

    $vars[] = \'cq\'; // Will hold category ID
    $vars[] = \'tq\'; // Will hold taxonomy name
    $vars[] = \'ttq\'; // Will hold term slug
    $vars[] = \'sq\'; // Will hold search query
    $vars[] = \'aq\'; // Will hold author name
    $vars[] = \'taq\'; // Will hold tag id


    return $vars;

}, 10, 3 );

/**
 * Conditional tag to check whether or not a query_var has been set
 *
 * @param string $query_var query_var to check
 * @return (bool) true if query_var exists, false on failure
 *
*/
function has_query_var( $query_var ) {

    $array = $GLOBALS[\'wp_query\']->query_vars;

    return array_key_exists( $query_var, $array );

}

/**
 * For posts being clicked from a category page, the query_var, \'cq\' is set. 
 * \'cq\' holds the category ID
 *
 * Set two query_var, \'tq\' and \'ttq\' to single posts that was clicked on from 
 * taxonomy pages. \'tq\' holds the taxonomy name while \'ttq\' holds the term name
 *
 * For search queries, the query_var, \'sq\' is set to single posts that was clicked on from 
 * the search page. \'sq\' holds the search query value
 *
 * For posts being clicked from an author page, the query_var, \'aq\' is set. 
 * \'aq\' holds the author ID
 *
 * For posts being clicked from a tag page, the query_var, \'taq\' is set. 
 * \'taq\' holds the tag ID
 *
 * This function replaces the wp_get_referer() and $_SERVER[\'HTTP_REFERER\']
 * functions that are not very reliable
 * @see php.net manual $_SERVER[\'HTTP_REFERER\']
 * @link http://php.net/manual/en/reserved.variables.server.php
 *
 * @uses add_query_arg()
 * @uses post_link
 * @uses post_type_link
 *
*/
add_filter( \'post_type_link\', \'term_referer_link\', 10, 3 );
add_filter( \'post_link\', \'term_referer_link\', 10, 3 );

function term_referer_link( $permalink, $post ) {

    switch ( true ) {

        case ( is_category() ):

            $category = get_queried_object_id();

            $args = [
                \'cq\'    => $category, 
            ];

            break;
        case ( is_tax() ):

            $term = get_queried_object();

            $args = [
                \'tq\'    => $term->taxonomy, 
                \'ttq\'   => $term->slug
            ];

            break;

        case ( is_search() ):

            $search = get_search_query();

            $args = [
                \'sq\'    => $search, 
            ];

            break;

        case ( is_author() ):

            $author = get_queried_object_id();

            $args = [
                \'aq\'    => $author,
            ];

            break;

        case ( is_tag() ):

            $tag = get_queried_object_id();

            $args = [
                \'taq\'   => $tag,
            ];

            break;

    }

    if( isset( $args ) ) { 

        $permalink  = add_query_arg( $args, $permalink );

    }

    return $permalink;

}

/**
 * @access private
 * This function is marked private and should not be used in any other functions
 *
 * This is a helper function for the main navigation function 
 * 
 * This function checks if any of the query variables is set in the single
 * post page URL. If they exist, the values are retrieved that were set
 * by the query variables
 *
 * These query variables are converted into query arguments for the query that will
 * be used to determine the current post position and the posts adjacent to the
 * current post which will translate in the next and previous post. 
 * 
 * When no query variables are present, an empty array of arguments is returned
 * 
 * @uses has_query_var()
 * @return (array) $add_query_args_to_args Query variable to determine the next/previous post links
 * @see http://codex.wordpress.org/Function_Reference/add_query_arg
 *
*/
function _query_vars_to_query_args() {

    switch ( true ) {

        case ( has_query_var( \'cq\' ) ): // For category referrer

            $category = get_query_var( \'cq\' );

            $add_query_args_to_args = [
                \'cat\' => $category,
            ];

            break;

        case ( has_query_var( \'tq\' ) && has_query_var( \'ttq\' ) ): // For taxonomy term referrer

            $taxonomy   = get_query_var( \'tq\' );
            $term       = get_query_var( \'ttq\' );

            $add_query_args_to_args = [
                \'tax_query\' => [
                    [
                        \'taxonomy\'          => $taxonomy,
                        \'field\'             => \'slug\',
                        \'terms\'             => $term,
                        \'include_children\'  => false,
                    ],
                ],
            ];

            break;

        case ( has_query_var( \'sq\' ) ): // For search referrer

            $search = get_query_var( \'sq\' );

            $add_query_args_to_args = [
                \'s\' => $search,
            ];

            break;

        case ( has_query_var( \'aq\' ) ): // For author referrer

            $author = get_query_var( \'aq\' );

            $add_query_args_to_args = [
                \'author\' => $author,
            ];

            break;

        case ( has_query_var( \'taq\' ) ): // For tag referrer

            $tag = get_query_var( \'taq\' );

            $add_query_args_to_args = [
                \'tag_id\' => $tag,
            ];

            break;

        default: // Default: returns empty array on any other archive or homepage

            $add_query_args_to_args = [];

            break;

    }

    return $add_query_args_to_args;

}
/**
 * @access private
 * This function is marked private and should not be used in any other functions
 *
 * This is a helper function for the main pagination function. This function 
 * checks if the defined query variables has been set in the URL of a single
 * post
 * 
 * If any of the query variables are found on any given single post page, then 
 * these query variables will be set to the next and previous post links according
 * to the single post\'s query variables
 * 
 * This way, next and previous posts will be shown from the same category, term, 
 * search query or author archive from which the original single post was referred 
 * from. 
 *
 * If a single post was referred from any other archive or main page, these query 
 * variables will not be set, and function will default to an empty array and no
 * query variables will be set to the next and previous post links
 *
 * @uses has_query_var()
 * @return (array) $qv Query variable to add to next/previous post links
 * @see http://codex.wordpress.org/Function_Reference/add_query_arg
 *
 * @todo Other archives can be added later
*/
function _add_query_vars_to_nav_links() {

    switch ( true ) {

        case ( has_query_var( \'cq\' ) ): // For category referrer

            $category = get_query_var( \'cq\' );

            $qv = [
                \'cq\'    => $category, 
            ];

            break;

        case ( has_query_var( \'tq\' ) && has_query_var( \'ttq\' ) ): // For taxonomy term referrer

            $taxonomy   = get_query_var( \'tq\' );
            $term       = get_query_var( \'ttq\' );

            $qv = [
                \'tq\'    => $term->taxonomy, 
                \'ttq\'   => $term->slug
            ];

            break;

        case ( has_query_var( \'sq\' ) ): // For search referrer

            $search = get_query_var( \'sq\' );

            $qv = [
                \'sq\'    => $search, 
            ];

            break;

        case ( has_query_var( \'aq\' ) ): // For author referrer

            $author = get_query_var( \'aq\' );

            $qv = [
                \'aq\'    => $author,
            ];

            break;

        case ( has_query_var( \'taq\' ) ): // For tag referrer

            $tag = get_query_var( \'taq\' );

            $qv = [
                \'taq\'   => $tag,
            ];

            break;


        default: // Default: returns empty array on any other archive or homepage

            $qv = [];

            break;

    }

    return $qv;

}

/**
 * This function returns navigation links to the next/previous single post
 * There are choices to which taxonomy to use, and whether adjacent posts should
 * be of the same term or not
 * 
 * When in_same_term is set to true, you have a choice to use the parent term or
 * child term if a post belongs to both. If the parent term is not available, the child term 
 * is automatically used
 *
 * @param array $defaults An array of key => value arguments. Defaults below 
 * - bool in_same_term       Whether or not next/previous post should be in the same term Default true
 * - bool parent_term        If in_same_term is true, should the parent or child terms be used Default true
 * - string/array taxonomy   The taxonomy from which terms to use Default category
 * - string/array post_types Post types to get posts from. Uses current post\'s post type on empty string. Default empty string 
 * - string previous_text    Text to display with previous post Default \'Previous post\'
 * - string next_text        Text to display with next post Default \'Next post\'
 *
 * @return string $links
*/ 
function get_single_post_navigation( $args = [] ) {

    // Sets the default arguments for default usage
    $defaults = [
        \'in_same_term\'      => true,
        \'parent_term\'       => true,
        \'post_types\'         => \'\',
        \'taxonomy\'          => \'category\',
        \'previous_text\'     => __( \'Previous post\' ),
        \'next_text\'         => __( \'Next post\' ),
    ];

    // Merges the default arguments with user defined variables
    $args = wp_parse_args( $args, $defaults );

    /**
     * Get the currently displayed single post. For this use 
     * get_queried_object() as this is more safe than the global $post
     *
     * The $post global is very easily changed by any poorly written custom query
     * or function, and is there for not reliable
     *
     * @see Post below on WPSE for explanation
     * @link https://wordpress.stackexchange.com/q/167706/31545
    */ 
    $single_post = get_queried_object();

    /**
     * Use the post type of the current post or post types entered in args
     *
    */ 
    $post_type   = ( empty( $args[\'post_types\'] ) ) ? $single_post->post_type : $args[\'post_types\'];


    // Set the variable query variables according to condition
    if( !empty( _query_vars_to_query_args() ) ) {

        $query_args = _query_vars_to_query_args(); 

    }elseif( true === $args[\'in_same_term\'] ) {

        $terms =  wp_get_post_terms( $single_post->ID, $args[\'taxonomy\'] ); 

        if ( ! empty( $terms ) && ! is_wp_error( $terms ) ){

            foreach ( $terms as $term ) {
                if( $term->parent === 0 ) {
                    $parent[] = $term;
                }else{
                    $child[] = $term;
                }
            }   

            $term_id = ( $args[\'parent_term\'] === true && isset( $parent ) ) ? $parent[0]->term_id : $child[0]->term_id;

            $query_args = [ 
                \'tax_query\' => [
                    [
                        \'taxonomy\'          => $args[\'taxonomy\'],
                        \'field\'             => \'term_id\',
                        \'terms\'             => $term_id,
                        \'include_children\'  => false,
                    ],
                ],
            ];
        }

    }else{

        $query_args = [];

    }

    // Default arguments to use with all the conditional statements above
    $default_query_args = [ 
        \'post_type\'         => $post_type,
        \'fields\'            => \'ids\',
        \'posts_per_page\'    => -1,
        \'suppress_filters\'  => true,
    ];

    // Merges the default arguments with the arguments from the conditional statement
    $combined_args = wp_parse_args( $query_args, $default_query_args );

    $q = new WP_Query( $combined_args );

    // Get the current post position. Will be used to determine adjacent posts
    $current_post_position = array_search( $single_post->ID, $q->posts );

    // Get the returned values from \'_add_query_vars_to_nav_links()\' to build links
    $get_qv = _add_query_vars_to_nav_links(); 

    // Get the next/older post ID
    if ( array_key_exists( $current_post_position + 1 , $q->posts ) ) {
        $next = $q->posts[$current_post_position + 1];
    }

    // Get post title link to the next post
    if( isset( $next ) ) {

        $next_post      = get_post( $next );
        $next_post_link = ( !empty( $get_qv ) ) ? add_query_arg( $get_qv, get_permalink( $next ) ) : get_permalink( $next );
        $next_title     = \'<span class="meta-nav">\' . $args[\'next_text\'] . \': </span><a href="\' . $next_post_link . \'">\' . $next_post->post_title . \'</a></br>\';

    }else{

        $next_title     = \'\';

    }

    // Get the previous/newer post ID
    if ( array_key_exists( $current_post_position - 1 , $q->posts ) ) {
        $previous = $q->posts[$current_post_position - 1];
    }

    // Get post title link to the previous post
    if( isset( $previous ) ) {

        $previous_post      = get_post( $previous );
        $previous_post_link = ( !empty( $get_qv ) ) ? add_query_arg( $get_qv, get_permalink( $previous ) ) : get_permalink( $previous );
        $previous_title     = \'<span class="meta-nav">\' . $args[\'previous_text\'] . \': </span><a href="\' . $previous_post_link . \'">\' . $previous_post->post_title . \'</a></br>\';

    }else{

        $previous_title     = \'\';

    }

    // Create the next/previous post links
    $links  = \'<nav class="navigation post-navigation" role="navigation">\';
    $links .= \'<div class="nav-links">\';
    $links .= $previous_title;
    $links .= $next_title;
    $links .= \'</div><!-- .nav-links -->\';
    $links .= \'</nav><!-- .navigation -->\';

    // Returns the post links with HTML mark-up
    return $links;

}

/** 
 * This function is simply just a wrapper for the main navigation
 * function and echo\'s the returned values from the main navigation
 * function
*/ 
function single_post_navigation( $args = [] ) {

    echo get_single_post_navigation( $args );

}

如果您不需要在同一期限内浏览帖子，从所有帖子类型中获取帖子，并使用链接自定义下一个和上一个文本，则可以执行以下操作：

$args = [
    \'in_same_term\'     => false,
    \'post_types\'       => [\'post\', \'my_post_type\'],
    \'previous_text\'      => __( \'Vorige Pos\' ),
    \'next_text\'      => __( \'Volgende Pos\' ),
];

single_post_navigation( $args );

应SO上帖子的请求，并作为@todo, 我现在引入了支持，不仅可以从当前帖子的帖子类型在帖子之间导航，还可以从用户使用post_types 函数中的参数。请查看更新的代码。

编辑2添加\'suppress_filters\' => true, 到WP_Query 参数中使用的任何筛选器都不会更改分页WP_Query