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<?php
//Hide certain tags
function get_the_tags_advanced( $before = '', $sep = ', ', $after = '', $exclude = '' ) {
 $tags = get_the_tags();
 if ( empty( $tags ) )
	return false; $tag_list = $before;
 foreach ( $tags as $tag ) {
   if (!empty($exclude))
	$pos = stripos( $exclude, $tag->name);
   else
	$pos = false;
	if ($pos=== false)
	  $tag_links[] = '<a href="' . get_tag_link($tag->term_id) . '" rel="tag">' . $tag->name . '</a>';
 }
 if (empty($tag_links))
	return false;
 $tag_links = join( $sep, $tag_links );
 $tag_links = apply_filters( 'the_tags', $tag_links );
 $tag_list .= $tag_links;
 $tag_list .= $after;
 return $tag_list;
}
?>