Wordpress Blog Posts with Pagination inside a Page/Post

Question

Refer to the title, I'm trying to create a shortcode for Blog Post with Pagination. I'm able to show the blog post but the pagination is not working. I tried using the code below and the link to second page is www.mysite.com/postname/page/2 . But it goes back to www.mysite.com/postname/ when I click on the pagination link to second page.

<?php
$big = 999999999; 

    $pagination = paginate_links( array(
        'base' => str_replace( $big, '%#%', esc_url( get_pagenum_link( $big ) ) ),
        'format' => '?paged=%#%',
        'current' => max( 1, get_query_var('paged') ),
        'total' => $this->query->max_num_pages
    ) );

    $html .= $pagination;
?>

Answer 1

It is still somewhat a mystery what you need looking at all the comments and the question content.

Here are two approaches that should work

FOR PAGES

I have written a complete function that will paginate any (or almost any) query except on single post pages. It also works out of the box for static front pages. I'm not going to go into details regarding the get_paginated_numbers() pagination function. Everything you need to know is discussed in my answer here, so feel free to check it out. And don't forget to modify it to suit your exact needs.

Here is a basic shortcode to showcase the usage

add_shortcode( 'paginate_shortcode', function ()
{
    if ( get_query_var('paged') ) { 
        $current_page = get_query_var('paged'); 
    }elseif ( get_query_var('page') ) { 
        $current_page = get_query_var('page'); 
    }else{ 
        $current_page = 1; 
    }

    $q = new WP_Query( ['posts_per_page' => 1, 'paged' => $current_page] );
    return $q->posts[0]->post_title . '</br>' . get_paginated_numbers( ['query' => $q] );
});

You can use [paginate_shortcode] on any page, it will display something like this

Note that the post title changes as the links changes

FOR SINGLE POSTS

Single posts with paginated sub queries are not really meant to be. If you are going to use your shortcode on a single post page (which I discourage) like for related posts, you can use the approach that I posted in this answer. It is quite extensive, so I'm not going to repost it here. Feel free to check it out and modify as needed

Answer 2

paged is the query var for archive pagination, and /page/n/ is the format for archive pagination URLs. Single posts use page and the format is /postname/n/, where n is the page number. Your links are redirecting because they are an invalid format.

Answer 3

Ok buddy add this code to your functions.php

//This function is responsible for splitting posts and pages using <!--nexpage-->
function my_link_pages() {
$paged_page_nav = wp_link_pages(
            array(
            'before' => '<div class="page-navigation"><ul><li class="pages">' . esc_html__( 'Pages:', 'domain' ) . '</li>',
            'after' => '</ul></div>',
            'link_before' => '<span>',
            'link_after' => '</span>',
            'echo' => false
            )
         );

//Add "current" and "page_divide" classes to our links
//READ: http://wordpress.stackexchange.com/questions/17421/wp-link-page-wrap-current-page-element
// Now let's wrap the nav inside <li>-elements
$current_class = 'current';
$classes = 'page_divide';
$paged_page_nav = str_replace( '<a', '<li class="'. $classes .'"><a' ,$paged_page_nav );
$paged_page_nav = str_replace( '</span></a>', '</a></li>', $paged_page_nav );
$paged_page_nav = str_replace( '"><span>', '">', $paged_page_nav );
//Add "current" class
$paged_page_nav = str_replace( '<span>', '<li class="'. $current_class .'">', $paged_page_nav );
$paged_page_nav = str_replace( '</span>', '</li>', $paged_page_nav );
echo  $paged_page_nav ;
}

Then call it in your single.php like so:

<?php my_link_pages(); ?>

Make sure that you add <!--nexpage--> on your Post Edit screen (Select Text NOT Visual)