function uniencode(text) { text = escape(text.toString()).replace(/\+/g, "%2B"); var matches = text.match(/(%([0-9A-F]{2}))/gi); if (matches) { for (var matchid = 0; matchid < matches.length; matchid++) { var code = matches[matchid].substring(1,3); if (parseInt(code, 16) >= 128) { text = text.replace(matches[matchid], '%u00' + code); } } } text = text.replace('%25', '%u0025'); return text; }

function convert_int_to_utf8($intval) { $intval = intval($intval); switch ($intval) { // 1 byte, 7 bits case 0: return chr(0); case ($intval & 0x7F): return chr($intval); // 2 bytes, 11 bits case ($intval & 0x7FF): return chr(0xC0 | (($intval >> 6) & 0x1F)) . chr(0x80 | ($intval & 0x3F)); // 3 bytes, 16 bits case ($intval & 0xFFFF): return chr(0xE0 | (($intval >> 12) & 0x0F)) . chr(0x80 | (($intval >> 6) & 0x3F)) . chr (0x80 | ($intval & 0x3F)); // 4 bytes, 21 bits case ($intval & 0x1FFFFF): return chr(0xF0 | ($intval >> 18)) . chr(0x80 | (($intval >> 12) & 0x3F)) . chr(0x80 | (($intval >> 6) & 0x3F)) . chr(0x80 | ($intval & 0x3F)); } }