Get posts that have both of two categories only in WordPress

I added a post in wordpress and selected two categories (e.g: id=20,150).
Now with a custom query_post method, I want to show the post only if it have both of the categories.

For this I wrote this query:

$subc = array('20','150');
$query = query_posts('post_type=post&cat='.$subc.'&post_status=publish&posts_per_page=50&paged='. get_query_var('paged'));

The query should be treate this way: if categories found are 20 AND 150 then show, otherwise don’t display.

But I am not getting exactly what i want. Can anyone modify above query and help me to show exactly what I want?

Post Views: 2

2 comments

First, don’t use query_posts. Ever.

Then, using get_posts, you can use the category__and parameter:

$get_posts = query_posts(array(
    'post_type' => 'post',
    'category__and' => array(20,150),
    'posts_per_page' => 50,
    'paged' => get_query_var('paged')
));

Can you try this one?

query_posts(array(
  'post_type'=>'post',
  'cat'=>'20,150',
  'post_status'=>'publish',
  'posts_per_page'=>'50',
  'paged'=>get_query_var('paged')
));

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