问题
We have a bunch of surrogate pair (or 2-byte utf8?) characters such as ��
which is the prayer hands emojis stored as UTF8 as 2 characters. When rendered in a browser this string renders as two ??
example:
I need to convert those to the hands emjoi using php but I simply cannot find a combination of iconv, utf8_decode, html_entity_decode etc to pull it off.
This site converts the ��
properly:
http://www.convertstring.com/EncodeDecode/HtmlDecode
Paste in there the following string
Please join me in this prayer. ��❤️
You will notice the surragate pair (��
) converts to 🙏
This site is claiming to use HTMLDecode but I cannot find anything inside php to pull this off. I have tried: iconv html_entity_decode and a few public libraries.
I admit I am no expert when it comes to converting character encodies around!
回答1:
I was not able to find a function to do this, but this works:
$str = "Please join me in this prayer. ��❤️";
$newStr = preg_replace_callback("/&#.....;&#.....;/", function($matches){return convertToEmoji($matches);}, $str);
print_r($newStr);
function convertToEmoji($matches){
$newStr = $matches[0];
$newStr = str_replace("&#", '', $newStr);
$newStr = str_replace(";", '##', $newStr);
$myEmoji = explode("##", $newStr);
$newStr = dechex($myEmoji[0]) . dechex($myEmoji[1]);
$newStr = hex2bin($newStr);
return iconv("UTF-16BE", "UTF-8", $newStr);
}
来源:https://stackoverflow.com/questions/47187165/convert-55357-56911-to-emoji-in-html-using-php