Custom Post Status

csutom_post_status.php

// Registering custom post status
function wpb_custom_post_status(){
    register_post_status('inactive', array(
        'label'                     => _x(
 'Inactive', 'post' ),
        'public'                    => false,
        'exclude_from_search'       => false,
        'show_in_admin_all_list'    => true,
        'show_in_admin_status_list' => true,
        'label_count'               => _n_noop( 'Inactive <span class="count">(%s)</span>', 'Inactive <span class="count">(%s)</span>' ),
    ) );
}
add_action( 'init', 'wpb_custom_post_status' );
 
// Using jQuery to add it to post status dropdown
add_action('admin_footer-post.php', 'wpb_append_post_status_list');
function wpb_append_post_status_list(){
    global $post;
    $complete = '';
    $label = '';
    if($post->post_type == 'post'){
        if($post->post_status == 'inactive'){
            $complete = ' selected="selected"';
            $label = '<span id="post-status-display"> Inactive</span>';
        }
        echo '
        <script>
        jQuery(document).ready(function($){
        $("select#post_status").append("<option value=\"inactive\" '.$complete.'>Inactive</option>");
        $(".misc-pub-section label").append("'.$label.'");
        });
        </script>
        ';
    }
}