Custom Taxonomy To exclude/Include Specific Item

Custom Taxonomy is useful to exclude any item from blog/portfolio etc.

Step 01 : Register this in functions.php

    function pages_taxonomy() {
        register_taxonomy(
            'portfolio_cat', // this will be used in query.
            'work', //Name of your custom post.
            array(
                'hierarchical' => true,
                'label' => 'Portofolio Category',
                'query_var' => true,
                'rewrite' => array(
                    'slug' => 'portfolio-category',
                    'with_front' => true
                    )
                )
            );
    }
add_action('init', 'pages_taxonomy');

Step 02: Then call the custom taxonomy in any query like this:

IF YOU USE SHORTCODE:

 $q = new WP_Query(
        array('posts_per_page' => 4, 'post_type' => 'work', 'portfolio_cat' => 'Featured')
        );

IF YOU USE GLOBAL QUERY:

<?php
global $post;
$args = array( 'posts_per_page' => 4, 'post_type'=> 'post', 'portfolio_cat' => 'Featured');
$myposts = get_posts( $args );
foreach( $myposts as $post ) : setup_postdata($post); ?>

<?php
$promotions_icon = get_post_meta($post->ID, 'promotions_icon', true);
?>
// Put your content here
<?php endforeach; ?>