http://www.test.com/a/b/c.html * with a nicer [test.com] */ function __urlfilter_filter($in) { $match = '|\\1|i'; return preg_replace_callback($match, '__filter_callback', $in); } /** * We need a callback because for some obscure reason the /ie modifier wouldnt work * in preg_replace alone. This basically formats the output */ function __filter_callback($matches) { $ret = preg_match("/^(http:\/\/)?(w*\.)?([^\/]+)/i", $matches[1], $outmatches); return "[" . $outmatches[3] . "]"; } rss_set_hook('rss.plugins.import.description','__urlfilter_filter'); ?>