Post Pagination Modifications (wp_link_pages)

Question

I'm looking to modify how Wordpress is showing the pages of my posts. What I currently have is a previous and next page link at the bottom of the post with the following code:

<?php wp_link_pages( array( 'before' => '<div class="page-link-next-prev">',
 'after' => '</div>', 'next_or_number' => 'next', 'previouspagelink' =>
 __('Previous'), 'nextpagelink'=> __('Next')  ) );?>

Which would render: Previous Next

What I want to show is: Previous 1 of 5 Next The page where I am and the total of pages in between both buttons.

Also, is there any way that when I am on page 5 of 5 the next button still appears but goes to the next article?

Thanks a lot!

Answer 1

This code should help you achieve what you want to, if you swap the code below

<?php wp_link_pages( array( 'before' => '<div class="page-link-next-prev">',
 'after' => '</div>', 'next_or_number' => 'next', 'previouspagelink' =>
 __('Previous'), 'nextpagelink'=> __('Next')  ) );?>

With this code

<?php 

global $page, $pages;

// This shows the Previous link
wp_link_pages( array( 'before' => '<div class="page-link-next-prev">', 
'after' => '', 'previouspagelink' => 'Previous', 'nextpagelink' => '', 
'next_or_number' => 'next' ) ); 

// This shows the page count i.e. "1 of 5"
echo( $page.' of '.count($pages) );

// This shows the Next link
wp_link_pages( array( 'before' => '', 'after' => '</div>', 'previouspagelink' => '', 
'nextpagelink' => 'Next', 'next_or_number' => 'next' ) ); 

?>

This will show Next and Previous Links with the page count in between.

To get your next button to click through to the next post you can possibly further your code with something like this:

<?php
// If the current page equals the last page
if ($page == count($pages)): 
  // Prepare the next post
  // See: https://codex.wordpress.org/Function_Reference/get_next_post
  $next_post = get_next_post(); 
  // Then spit out the next link
  ?>
  <a href="<?php echo get_permalink( $next_post->ID ); ?>">Next</a>
<?php
// End the if statement
endif; ?>

Answer 2

There exists filter: wp_link_pages_args (also, wp_link_pages_link):

add_filter( 'wp_link_pages_args', 'my_function', 11, 1 );
function my_function($base_parameters){
  $new_parameters = array(
        'before'        => '<p class="my_class">' . __( 'Pages:' ),
        'after'         => '</p>',
        'link_before'   => '',  'link_after'    => '',
        'next_or_number'=> 'number',
        'separator'     => ' ',
        'nextpagelink'  => __( 'Next page' ),
        'previouspagelink'=> __( 'Previous page' ),
        'pagelink'      => '%',
        'echo'          => 1
  );
  return $new_parameters;
}