Query post using post id

5 comments

1. get_post( $post_id, $output );
   

   So in practice will look like:

   $my_id = 7;
   $post_id_7 = get_post($my_id);
   

   Further reference about the post’s parameters and fields, here: http://codex.wordpress.org/Function_Reference/get_post

   Update: It’s the best practice when you need to get a single post by id, no cicles required.

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2. Change post_id= to p=.

   $setQuery = 'p='.$_GET['php_post_id'];
   query_posts($setQuery);
   

   Click in this link to see: Retrieve a Particular Post

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3. If you are looking to get a single post with an ID you already know or getting from another source, i’ll suggest the below code.

   $args = array(
           'post_type' => 'post',
           'post_status' => 'publish',
           'p' => $id,   // id of the post you want to query
       );
       $my_posts = new WP_Query($args);  
   
      if($my_posts->have_posts()) : 
   
           while ( $my_posts->have_posts() ) : $my_posts->the_post(); 
   
             get_template_part( 'template-parts/content', 'post' ); //Your Post Content comes here
   
           endwhile; //end the while loop
   
   endif; // end of the loop. 
   

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4. You can create a query like so:

     $rd_args = [
          'ID' => $postId
     ];
   
     $query = new WP_Query($rd_args);
   

   And then you can retrieve the post from the query. Or set it to the global query and loop over it:

   $GLOBALS['wp_query'] = $query;
   
   while ( have_posts() ) : the_post();
   

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5. Here is the code to fetch post using query_post if you know the ID.

   <?php
       $my_query = query_posts('post_id=111&post_type=parks'); // in place of 111 you need to give desired ID.
       global $post;
       foreach ($my_query as $post) {
          setup_postdata($post);
          the_title();
          the_content();
       }
   ?>
   

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