I'm trying to detect emoji in my php code, and prevent users entering it.The code I have is:\[code\]if(preg_match('/\xEE[\x80-\xBF][\x80-\xBF]|\xEF[\x81-\x83][\x80-\xBF]/', $value) > 0){ //warning...}\[/code\]But doesn't work for all emoji. Any ideas?