wordpress - How to return results from single category in this query? -

how can return latest post category 84 in query?

<?php             /*$args = array('post_type'=>'post', 'posts_per_page'=>'10', 'post_no_in'=>$do_not_duplicate);*/             $args = array('post_type'=>'post', 'post_no_in'=>$do_not_duplicate);             $query = new wp_query($args);             query_posts("cat=84&showposts=1&orderby=desc");             if($query->have_posts()){             while(have_posts()) : the_post();                /*$do_not_duplicate[] = get_the_id();*/  ?>             <div>                <?php the_post_thumbnail(); ?>                  <div class="instruction">                 <div class="home_title">most read</div>                 <div class="home_title_desc"><h3><a href="<?php the_permalink(); ?>"><?php echo the_title(); ?></a></h3></div>                  </div>             </div>          <?php endwhile; ?>         <?php } ?>   

i've tried 'cat' => 84, in array, no go. can show me how return results category 84? thanks

this code messy , attemps run 2 queries in row; 1 of them using query_posts() never idea (see here explanation).

here's query rewritten you, getting latest post category 84 requested:

$args = array(     'post_type' => 'post',     'category__in' => 84,     'order' => 'desc',     'posts_per_page' => 1, );  $query = new wp_query($args);  if($query->have_posts()){     while(have_posts()){         the_post();         // stuff here...     } } 

for information on each of these arguments do, see wp_query documentation. in particular, it's posts_per_page argument tells wordpress return 1 post you.

i've left out 'post_no_in'=>$do_not_duplicate original code because i'm not sure doing, if want ask feel free, or can find appropriate argument in wp_query documentation , add $args array above.