微信昵称乱码

最新推荐文章于 2024-03-14 17:32:08 发布

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最新推荐文章于 2024-03-14 17:32:08 发布

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分类专栏：微信昵称乱码

本文链接：https://blog.youkuaiyun.com/Demon_311/article/details/49357565

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数据库base64_encode()存入 
再base64_decode()解码


问题解决

  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

    <script type="text/javascript">
        <!--
        var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
        //将Ansi编码的字符串进行Base64编码
        function encode64(input) {
            var output = "";
            var chr1, chr2, chr3 = "";
            var enc1, enc2, enc3, enc4 = "";
            var i = 0;
            do {
                chr1 = input.charCodeAt(i++);
                chr2 = input.charCodeAt(i++);
                chr3 = input.charCodeAt(i++);
                enc1 = chr1 >> 2;
                enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
                enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
                enc4 = chr3 & 63;
                if (isNaN(chr2)) {
                    enc3 = enc4 = 64;
                } else if (isNaN(chr3)) {
                    enc4 = 64;
                }
                output = output + keyStr.charAt(enc1) + keyStr.charAt(enc2)
                + keyStr.charAt(enc3) + keyStr.charAt(enc4);
                chr1 = chr2 = chr3 = "";
                enc1 = enc2 = enc3 = enc4 = "";
            } while (i < input.length);
            return output;
        }
        //将Base64编码字符串转换成Ansi编码的字符串
        function decode64(input) {
            var output = "";
            var chr1, chr2, chr3 = "";
            var enc1, enc2, enc3, enc4 = "";
            var i = 0;

            if (input.length % 4 != 0) {
                return "";
            }
            var base64test = /[^A-Za-z0-9\+\/\=]/g;
            if (base64test.exec(input)) {
                return "";
            }
            do {
                enc1 = keyStr.indexOf(input.charAt(i++));
                enc2 = keyStr.indexOf(input.charAt(i++));
                enc3 = keyStr.indexOf(input.charAt(i++));
                enc4 = keyStr.indexOf(input.charAt(i++));
                chr1 = (enc1 << 2) | (enc2 >> 4);
                chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
                chr3 = ((enc3 & 3) << 6) | enc4;

                output = output + String.fromCharCode(chr1);
                if (enc3 != 64) {
                    output += String.fromCharCode(chr2);
                }
                if (enc4 != 64) {
                    output += String.fromCharCode(chr3);
                }
                chr1 = chr2 = chr3 = "";
                enc1 = enc2 = enc3 = enc4 = "";
            } while (i < input.length);
            return output;
        }

        function utf16to8(str) {
            var out, i, len, c;

            out = "";
            len = str.length;
            for(i = 0; i < len; i++) {
                c = str.charCodeAt(i);
                if ((c >= 0x0001) && (c <= 0x007F)) {
                    out += str.charAt(i);
                } else if (c > 0x07FF) {
                    out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));
                    out += String.fromCharCode(0x80 | ((c >>  6) & 0x3F));
                    out += String.fromCharCode(0x80 | ((c >>  0) & 0x3F));
                } else {
                    out += String.fromCharCode(0xC0 | ((c >>  6) & 0x1F));
                    out += String.fromCharCode(0x80 | ((c >>  0) & 0x3F));
                }
            }
            return out;
        }

        function utf8to16(str) {
            var out, i, len, c;
            var char2, char3;

            out = "";
            len = str.length;
            i = 0;
            while(i < len) {
                c = str.charCodeAt(i++);
                switch(c >> 4) {
                    case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
                    // 0xxxxxxx
                    out += str.charAt(i-1);
                    break;
                    case 12: case 13:
                    // 110x xxxx   10xx xxxx
                    char2 = str.charCodeAt(i++);
                    out += String.fromCharCode(((c & 0x1F) << 6) | (char2 & 0x3F));
                    break;
                    case 14:
                        // 1110 xxxx  10xx xxxx  10xx xxxx
                        char2 = str.charCodeAt(i++);
                        char3 = str.charCodeAt(i++);
                        out += String.fromCharCode(((c & 0x0F) << 12) |
                        ((char2 & 0x3F) << 6) |
                        ((char3 & 0x3F) << 0));
                        break;
                }
            }
            return out;
        }

        // 测试代码 开始
        var de = encode64(utf16to8("张晓泉™ <=> 1069897836@qq.com"));
        document.writeln(de+"<br>");
        var ee = utf8to16(decode64("5byg5pmT5rOJ4oSiIDw9PiAxMDY5ODk3ODM2QHFxLmNvbQ=="));
        document.writeln(ee);

        //-->
    </script>
</head>
<body>
</body>
</html>

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