I am running a custom query below each post, to get other post from its category. Now I want to exclude the current post. This is my Query:

<?php // related_posts();
$exclude_post   = $post->ID;
$cats =  get_the_category();
//$cats[0]->term_id;$cats[1]->term_id; //name
 global $post;
 $newQuery = new WP_Query('posts_per_page=5&orderby=rand&cat='.$cats[0]->term_id.'&post__not_in='.array($exclude_post).''); 
 if ( $newQuery->have_posts() ):?>
    while ( $newQuery->have_posts() ) : $newQuery->the_post(); ?>
            <a title="<?php the_title();?>" href="<?php the_permalink();?>"><?php the_title();?></a>


Now my query shows 0 results. The same, if I set the post which shall be excluded testwise to 1 or so.

What could be the error in my custom query?

Cheers Lars

1 Answer 1


You are trying to supply an array as part of the string query parameter. You could instead just supply the arguments list as an array like this:

$newQuery = new WP_Query( 
        'posts_per_page' => 5, 
        'orderby' => 'rand', 
        'cat' => $cats[0]->term_id, 
        'post__not_in' => array($exclude_post)

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