Use wordpress search to display results within a post

Question

I want to have to display related post within a post based on the post title. So for example I have a post named "France gas prices". First it displays all the post info but then under the post I want to have search results displayed using the "france gas prices" value. Now I could use this. (example search on specific meta data but i would be happy if it just searched post title)

<?php $title = get_the_title() ?>
<?php query_posts('meta_key=review_type&meta_value=$title');  ?> 
<?php if (have_posts()) : ?> 
<?php while (have_posts()) : the_post(); ?>

And then display the info from the found posts as I want but the problem is then I will only find exact matches. It wont find gas prices france or any other result like wordpress build in search would give.

How can I access the build in wordpress search give it a term dynamicly based on post title and then choose what I display from the found posts and how I display the info?

---> in other words how do you the build in wordpress functionality to fill a wp_query?

Answer 1

WP_Query accepts a search parameter, 's'. Hence, you can just do this:

<?php $related_posts = new WP_Query( 's=' . the_title_attribute( '', '', 0 ) );

if( $related_posts->have_posts() ) : while( $related_posts->have_posts() ) : $related_posts->the_post();

    // STUFF

endwhile; endif; wp_reset_postdata(); ?>

While we're here, note the use of WP_Query which is more appropriate for a secondary loop. You can also take a look at the link above if you want to add additional paramemters to restrict by post_type or taxonomy or anything else.