为什么分页会出现问题

现在，当您有如下类别URL时：https://example.com/wiki （而不是https://example.com/category/wiki) 并说出页面或帖子URL，如：

https://example.com/a-page
or
https://example.com/category-slug/a-post

这是因为WordPress与/page/2 作为不同部分multi-part paginated page or post.

因此，与其加载wiki 类别存档，WordPress将尝试加载带有slug的分页帖子page 你会得到404 （找不到页面）错误，而不是获取类别存档的第二页。

在我为您提供此问题的解决方案之前，首先确保您的永久链接是正确的。

要实现必要的类别URL结构：

# URL structure for Categories
https://example.com/category-slug

转到：WordPress Admin Panel Menu → Settings..) 在Category base 文本字段

# URL structure for Posts
https://example.com/category-slug/post-slug

转到：WordPress Admin Panel Menu → Settings.

<?php
/*
Plugin Name:  Category Pagination Fix
Plugin URI:   https://wordpress.stackexchange.com/a/311858/110572
Description:  Fix category pagination
Version:      1.0.0
Author:       Fayaz Ahmed
Author URI:   https://www.fayazmiraz.com/
*/

function wpse311858_fix_category_pagination( $query_string = array() )
{
    if( isset( $query_string[\'category_name\'] )
            && isset( $query_string[\'name\'] ) && $query_string[\'name\'] === \'page\'
            && isset( $query_string[\'page\'] ) ) {
        $paged = trim( $query_string[\'page\'], \'/\' );
        if( is_numeric( $paged ) ) {
            // we are not allowing \'page\' as a page or post slug 
            unset( $query_string[\'name\'] );
            unset( $query_string[\'page\'] )  ;

            // for a category archive, proper pagination query string  is \'paged\'
            $query_string[\'paged\'] = ( int ) $paged;
        }
    }   
    return $query_string;
}
add_filter( \'request\', \'wpse311858_fix_category_pagination\' );

https://example.com/category-slug/

https://example.com/category-slug/post-slug

https://example.com/category-slug/sub-category-slug

https://example.com/post-slug

Yoast插件-删除类别

Some related posts that might help you:

How to remove category from wordpress url?

Remove category & tag base from WordPress url - without a plugin

这是我的解决方案。

在我的情况下，这也适用于分页页面。

请试一试，如果有用请告诉我。

// Remove category from URL
add_filter(\'user_trailingslashit\', \'wpse311858_remove_category_from_url\');
function wpse311858_remove_category_from_url($link) {
  return str_replace("/category/", "/", $link);
}

// Add new category URLs
add_filter(\'generate_rewrite_rules\', \'wpse311858_category_rewrite\');
function wpse311858_category_rewrite($wp_rewrite) {
  $new_rules = [];

  // Get all the categories including empty categories
  $cats = get_categories([\'exclude\' => 1, \'hide_empty\' => false ]); //exclude uncategorized catagory if there were 

  // Loop through each category to add new rules to core rewrite pattern
  foreach( $cats as $cat ) {
    $cat_nicename = $cat->slug;

    // Check if it is parent or child category
    if( $cat->parent !== 0 ) {
      $cat_nicename = get_category_parents( $cat->parent, false, \'/\', true ) . $cat_nicename;
    }

    // For each pattern
    $new_rules[\'(\' . $cat_nicename . \')/(.+?)/feed/(feed|rdf|rss|rss2|atom)/?$\'] = \'index.php?category_name=$matches[1]&feed=$matches[2]\'; // for feed pattern
    $new_rules[\'(\' . $cat_nicename . \')/(.+?)/(feed|rdf|rss|rss2|atom)/?$\'] = \'index.php?category_name=$matches[1]&feed=$matches[2]\'; // for another feed pattern
    $new_rules[\'(\' . $cat_nicename . \')/(.+?)/embed/?$\'] = \'index.php?category_name=$matches[1]&embed=true\'; // for embed page
    $new_rules[\'(\' . $cat_nicename . \')/page/?([0-9]{1,})/?$\'] = \'index.php?category_name=$matches[1]&paged=$matches[2]\'; // for paged page
    $new_rules[\'(\' . $cat_nicename . \')/?$\'] = \'index.php?category_name=$matches[1]\'; // for category archive page

  } //endforeach

  // Finally add new rules
  $wp_rewrite->rules = $new_rules + $wp_rewrite->rules;
}