JS text string conversion unicode encoding function_javascript skills

Copy code The code is as follows:

function uniencode(text)
{
text = escape (text.toString()).replace(/ /g, "+");
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('%', '%u0025');
return text;
}

Of course the server must encode the The string is transcoded for the second time. Convert the string into UTF-8 encoding.

Copy code The code is as follows:

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 > into UTF-8 encoding. This method is suitable for various server environments.