How to Encode URL Contains Unicode Characters with PHP - php

Question

Currently, I'm trying to look for a solution to encode url which contains unicode characters, Khmer Unicode. I've tried using php built-in function urlencode() and it gives result:
For example: http://www.example.com/?kwd=Mac+Book+Pro+នៅប្រទេសយើង
While I've tested with Google search, it results:
https://www.google.com.kh/#hl=en&sclient=psy-ab&q=Mac+Book+Pro+%E1%9E%93%E1%9F%85%E1%9E%94%E1%9F%92%E1%9E%9A%E1%9E%91%E1%9F%81%E1%9E%9F%E1%9E%99%E1%9E%BE%E1%9E%84&oq=Mac+Book+Pro+%E1%9E%93%E1%9F%85%E1%9E%94%E1%9F%92%E1%9E%9A%E1%9E%91%E1%9F%81%E1%9E%9F%E1%9E%99%E1%9E%BE%E1%9E%84
How to do that? Hope someone here would help me.
Thanks in advance!

Answer 1

For UTF-8 you can use:
urlencode(utf8_encode($string)); //for encoding
utf8_decode(urldecode($string)); //for decoding
For UTF-16 you can use this function (from notes for urlencode in http://php.net/urlencode):
function utf16_urlencode ( $str ) {
# convert characters > 255 into HTML entities
$convmap = array( 0xFF, 0x2FFFF, 0, 0xFFFF );
$str = mb_encode_numericentity( $str, $convmap, "UTF-8");
# escape HTML entities, so they are not urlencoded
$str = preg_replace( '/&#([0-9a-fA-F]{2,5});/i', 'mark\\1mark', $str );
$str = urlencode($str);
# now convert escaped entities into unicode url syntax
$str = preg_replace( '/mark([0-9a-fA-F]{2,5})mark/i', '%u\\1', $str );
return $str;
}

Answer 2

function cleanUrl($url) {
$res= urlencode(utf8_encode($url));
$res = str_replace("%3A",":",$res);
$res = str_replace("%2F","/",$res);
return $res;
}

Answer 3

Try rawurlencode
http://php.net/manual/en/function.rawurlencode.php