Is there any plugin to automatically add <!--more--> tag when the post is longer than say 10 lines? [closed]

Question

Is there any plugin to automatically add tag when the post is longer than say 10 lines? I want to trim the post in the homepage but do not want to add more tags for all the post one by one.

Answer 1

Use the_excerpt() function.

By default, excerpt length is set to 55 words. To change excerpt length using excerpt_length filter, add the following code to functions.php file in your theme:

function custom_excerpt_length( $length ) {
  return 20;
}
add_filter( 'excerpt_length', 'custom_excerpt_length', 999 );

You can add more link like this after the excerpt .

<a href="<?php get_permalink() ?>">Read more...</a>