function shorten_via_jmp($url, &$shorturls) { // if we already evaluated the shorturl, stop here if (!empty($shorturls['jmp'])) { return; } $short_url = trim(UrlShortener::_make_bitly_api_url($url, 'xml', 'j.mp')); if (!empty($short_url)) { $shorturls['jmp'] = $short_url; } }