Allowing wp_get_object_terms to exclude terms with a filter.

wp_get_object_terms_exclude_filter.php

<?php


///////Example usage//////////

//get object terms for $post->ID with taxonomies categories and tags, 
//args set as fields all and exclude term with id 1
$terms =    wp_get_object_terms(
                $post->ID, 
                array(
                    'category', 
                    'post_tag'
                ), 
                array(
                    'fields' => 'all', 
                    'exclude' => array(1)
                )
            );

///////Filter function//////////

function wp_get_object_terms_exclude_filter($terms, $object_ids, $taxonomies, $args) {

    //if exclude is set and fields is set to all go
    if(isset($args['exclude']) && $args['fields'] == 'all') {

        //loop through terms
        foreach($terms as $key => $term) {

            //loop through exclude terms
            foreach($args['exclude'] as $exclude_term) {

                //if exlude term matches current object term unset
                if($term->term_id == $exclude_term) {
                    unset($terms[$key]);
                }

            }

        }

    }

    //reset keys, because of unset.
    $terms = array_values($terms);

    return $terms;

}

add_filter('wp_get_object_terms', 'wp_get_object_terms_exclude_filter', 10, 4);