Is it possible to have a custom function to truncate the contents of a defined DIV on a blog post page to use as the summary on the blog index page. So rather than using $the_content or $the_excerpt - Is it possible to create $the_customContent and have some PHP which checks the blog post page and collects the content of the div with class "ThisIsTheContentToUse" - reason for this is that my blog posts have content on the page above the content I want to be included as the blog summary on the blog index page - so either want to tell WP to ignore those blocks of content, or, probably easier - just tell WP where the content to truncate is - e.g. in the "ThisIsTheContentToUse" div... possible? If so... how? Can't seem to find anything online that defines this custom functionality - surely I can't be the first person to want to do this...?
Would apply_filters make this possible? https://developer.wordpress.org/reference/hooks/the_content/
So, The blog post is structured as:
<div class="headerArea"> <h2>The title is here</h2> <ul> </div> <div class="bullets"> <li>Bullet 1</li> <li>Bullet 2</li> <li>Bullet 3</li> </ul> </div> <div class="ThisIsTheContentToUse"> <p>The content starts here</p> </div>
So, currently with the basic get_the_content - the result is:
"The title is here Bullet 1 Bullet 2 Bullet 3 The content starts here"
But what I want is just the content of the "ThisIsTheContentToUse" div - so it would be:
"The content starts here"