Remove Category Uncategorized from Wordpress Loop - php

Question

I want to list all post from a custom post type by category so I came up with this code (see below) but them I see this uncategorized category I want to remove. I tried in the query cat=$cat_id&exclude="1"&post_type=locations but it's not working. Any ideas? Thank You
<div class="entry-content">
<?php
$cats = get_categories();
foreach ($cats as $cat) {
$cat_id= $cat->term_id;
echo "<h2>".$cat->name."</h2>";
query_posts("cat=$cat_id&exclude="1"&post_type=locations");
if (have_posts()) : while (have_posts()) : the_post(); ?>
<?php ?>
<?php the_title(); ?>
<?php echo '<hr/>'; ?>
<?php endwhile; endif; ?>
<?php } ?>
<?php wp_reset_postdata(); ?>
</div><!-- .entry-content -->

Answer 1

This is quite old, but I stumbled across it, so in case it is relevant to anyone, here is what I believe the answer is:
Since you are specifying each category by ID, you are trying to exclude the category that you are specifying when it has a term ID of 1. So in the first iteration of the loop, you are saying
cat=1&exclude=1&post_type=locations
Since you are specifying exactly what you are excluding, I believe the "inclusive" query value outweights the "exclusive" query value. If this is the case, you can instead do it like this (and even save a query!):
$cats = get_categories();
foreach ( $cats as $cat ) {
$cat_id = $cat->term_id;
if ( $cat_id == 1 )
continue; // skip 'uncategorized'
echo "<h2>".$cat->name."</h2>";
query_posts("cat=$cat_id&post_type=locations");
?>{the rest}<?php
}
Please note, I don't recommend the use of query_posts, and instead get_posts() or new WP_Query should be used instead. Further reading:
https://developer.wordpress.com/2012/05/14/querying-posts-without-query_posts/

Answer 2

`query_posts( 'cat=-3' );`
// 3 is category id you want to exclude
see more ref. about query_posts QUERY POSTS

Answer 3

$args = array('exclude' => array(1));
$categories = get_categories($args);
foreach($categories as $category) {
echo $category->name;
}
Please try this I Hope this works. Thank you.

Answer 4

The problem are your quotes
try this:
query_posts("cat=$cat_id&exclude=1&post_type=locations");
Hope this helps you.

Answer 5

TRY THIS ;
Go to Appearance then click on Widget,
Once widget opened, Click on Primary Widget area,
You will see "Category"
Just click on,Hold your left mouse button and move to
"Inactive widget " Group.
When you go back your website, You will not see Uncategorized anymore. :-))