hide_empty 隐藏没有附加贴子的术语。你有一页没有ht_kb_tags 如果我理解正确的话，请附上。

自从get_the_terms() 退货false 如果没有条款，您应该能够防止foreach() 使用if() 声明：

$mget_site_url = get_site_url();

//This gets me all the correct terms...
$mget_the_terms = get_the_terms(get_queried_object_id(), \'ht_kb_tag\');
if ( ! empty( $mget_the_terms ) ) {
    echo __( \'Tagged: \', \'knowall\' );
    foreach ($mget_the_terms as $keygroup => $valuegroup) {
        foreach ($valuegroup as $key => $value) {
            if (($key == \'name\') && ($value != \'layout-wide\')) {
                //link the terms
                echo "<a href=\'{$mget_site_url}/tags/{$value}\' rel=\'tag\'>{$value}</a>";
            }
        }
    }
}