PHP Base64 中英文编码 JavaScript 解码

最新PHP Base64 中英文编码 JavaScript 解码

以下是三零网为大家整理的最新PHP Base64 中英文编码 JavaScript 解码的文章，希望大家能够喜欢!

<?php function str_encode($str){  //PHP base64 编码         return base64_encode(iconv('GB18030','UTF-8',$str)); }echo str_encode('网络:http://www.*.com'); ?>

 

<script language='javascript'> 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; }var base64EncodeChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; var base64DecodeChars = new Array(     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,     52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,     -1,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,     15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,     -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,     41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1); function base64encode(str) {     var out, i, len;     var c1, c2, c3;     len = str.length;     i = 0;     out = "";     while(i < len) {         c1 = str.charCodeAt(i++) & 0xff;         if(i == len){             out += base64EncodeChars.charAt(c1 >> 2);             out += base64EncodeChars.charAt((c1 & 0x3) << 4);             out += "==";             break;         }         c2 = str.charCodeAt(i++);         if(i == len){             out += base64EncodeChars.charAt(c1 >> 2);             out += base64EncodeChars.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4));             out += base64EncodeChars.charAt((c2 & 0xF) << 2);             out += "=";             break;         }         c3 = str.charCodeAt(i++);         out += base64EncodeChars.charAt(c1 >> 2);         out += base64EncodeChars.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4));         out += base64EncodeChars.charAt(((c2 & 0xF) << 2) | ((c3 & 0xC0) >>6));         out += base64EncodeChars.charAt(c3 & 0x3F);     }     return out; } function base64decode(str) {     var c1, c2, c3, c4;     var i, len, out;     len = str.length;     i = 0;     out = "";     while(i < len) {         /* c1 */         do {             c1 = base64DecodeChars[str.charCodeAt(i++) & 0xff];         } while(i < len && c1 == -1);         if(c1 == -1)             break;         /* c2 */         do {             c2 = base64DecodeChars[str.charCodeAt(i++) & 0xff];         } while(i < len && c2 == -1);         if(c2 == -1)             break;         out += String.fromCharCode((c1 << 2) | ((c2 & 0x30) >> 4));         /* c3 */         do {             c3 = str.charCodeAt(i++) & 0xff;             if(c3 == 61)                 return out;             c3 = base64DecodeChars[c3];         } while(i < len && c3 == -1);         if(c3 == -1)             break;         out += String.fromCharCode(((c2 & 0XF) << 4) | ((c3 & 0x3C) >> 2));         /* c4 */         do {             c4 = str.charCodeAt(i++) & 0xff;             if(c4 == 61)                 return out;             c4 = base64DecodeChars[c4];         } while(i < len && c4 == -1);         if(c4 == -1)             break;         out += String.fromCharCode(((c3 & 0x03) << 6) | c4);     }     return out; }function strdecode(str){         return utf8to16(base64decode(str)); } //JS解码测试 document.write(strdecode('5paw5YW0572R57ucOmh0dHA6Ly93d3cubmV3eGluZy5jb20=')); </script>