How to convert Chinese characters to unicode encoding in PHP

php method to convert Chinese characters to Unicode encoding: first create a PHP sample file; then use the "function UnicodeEncode($str){...}" method to convert the specified Chinese characters into a Unicode string.

#The operating environment of this article: Windows7 system, PHP7.1, Dell G3 computer.

Let’s look at the PHP Unicode encoding method to convert Chinese into Unicode characters, such as converting Sina Weibo into a Unicode string. The code is as follows:

function UnicodeEncode($str){
    //split word
    preg_match_all('/./u',$str,$matches);
 
    $unicodeStr = "";
    foreach($matches[0] as $m){
        //拼接
        $unicodeStr .= "&#".base_convert(bin2hex(iconv('UTF-8',"UCS-4",$m)),16,10);
    }
    return $unicodeStr;
}
 
$str = "新浪微博";
echo UnicodeEncode($str);

Unicode编码输出字符串：“\u65b0\u6d6a\u5fae\u535a”

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