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1. speeddaryl
   Member
   Posted 1 year ago #

   Hello,

   I'd like to modify the previous_post_link function in order to display the link with this pattern :
   id=1;title=Previous Post Title;link=#Examples;
   instead of :
   < a href="#Examples" title="">« Previous Post Title< /a>

   I'm currently trying to do it with a plugin, but hasn't managed so far...

   I wanted to find this function in the php files of WP but didn't find it. Where is it coded ?

   Thanks for your help !

2. Kafkaesqui
   Moderator
   Posted 1 year ago #

   Use the 'internal' WordPress function get_previous_post() (there's a get_next_post() as well). You probably want to assign it to a var:

   $prev_post = get_previous_post();

   There'll be two properties to $prev_post:
   

   $prev_post->ID
   $prev_post->post_title

   For the url, you can pass the previous post's ID to get_permalink():
   

   get_permalink($prev_post->ID);

   Note: Make certain to first scope the $post object to global in your plugin's function(s); it'll be needed to know what the previous and next posts are meant to be in relation to.

3. speeddaryl
   Member
   Posted 1 year ago #

   hello

   thank you for your answer Kafkaesqui
   I've started trying to get what i want with your reply, but i dont know how, i found the code of the previous_post_link function in the link-template.php file, and i changed it in order to get what i want :

   function my_previous_post_link($format='%link', $link='%title', $in_same_cat = false, $excluded_categories = '') {

   if ( is_attachment() )
   $post = & get_post($GLOBALS['post']->post_parent);
   else
   $post = get_previous_post($in_same_cat, $excluded_categories);

   if ( !$post )
   return;

   $title = apply_filters('the_title', $post->post_title, $post);
   $string = '&prev_id='.$post->ID.'&prev_link='.get_permalink($post->ID).'&prev_title='.$post->post_title;

   echo $string;
   }

   do you think this is correct ? it works perfectly for me, though i'm not really making it reusable for another purpose... for example, i'm not using the first two parameters, because i dont need any other usage of this function...

   and i dont know what's the use of the apply_filter function, i think maybe i can remove it in my_previous_post_link function...

   i hope this will be useful for other people !

   thanks bye
   Speed DARYL http://www.speed-daryl.com

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