posts page – different lengths of excerpt

2 comments

1. First, you need to filter excerpt_length.

   Assuming you want your default excerpt length to be 50 words:

   <?php
   function wpse53485_filter_excerpt_length( $length ) {
       return 50;
   }
   add_filter( 'excerpt_length', 'wpse53485_filter_excerpt_length' );
   ?>
   

   That will make all excerpts 50 words. Make sure that works first.

   Then, add in an appropriate conditional, to use a different excerpt length for a static page for posts. Assuming you use a custom page template, named template-posts.php, you could filter specifically for that page template, using is_page_template().

   Assuming you want the page for posts to use an excerpt length of 100 words:

   <?php
   function wpse53485_filter_excerpt_length( $length ) {
       if ( is_page_template( 'template-posts.php' ) ) {
           return 100;
       } else {
           return 50;
       }
   }
   add_filter( 'excerpt_length', 'wpse53485_filter_excerpt_length' );
   ?>
   

   Using this approach, you can conditionally return any number of excerpt lengths based on various contexts.

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2. Hard without having more info like how is your loop? Do you have two loops, one for the first 3 posts and a second for the rest ? Do you have one loop and assign a different markup with a counter ? Without having more info all that I can give to you to modify the excerpt is this:

   Paste this on your functions.php file

   function dp_clean($excerpt, $substr=0) {
       $string = strip_tags(str_replace('[...]', '...', $excerpt));
       if ($substr>0) {
           $string = substr($string, 0, $substr);
       }
       return $string;
   }
   

   And then use this <?php echo dp_clean($post->post_content, 250); ?>

   change 250 to some value to suit your needs

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