| 订阅 | 在线投稿
分享
 
 
 

PHP与JavaScript之间中文base64码转换代码

来源:互联网  宽屏版  评论
2008-09-02 06:53:58

//PHP base64_encode

<?php

function str_encode($str){

return base64_encode(iconv('GB18030','UTF-8',$str));

}

echo str_encode('你好!美女!');

?>

//////////////////////////////////////////////////////////////////////////////////////

另附PHP的base64的加解密函数!

{echo base64_encode($str)."<br />"; //加密

$ss='Z25pZD0yNSZncGljaT0x';

echo base64_decode($ss); //解密

/////////////////////////////////////////////////////////////////////////////////////

//JavaScript base64_decode

<script language='javascript'>

/* utf.js - UTF-8 <=> UTF-16 convertion

*

* Copyright (C) 1999 Masanao Izumo <iz@onicos.co.jp>

* Version: 1.0

* LastModified: Dec 25 1999

* This library is free. You can redistribute it and/or modify it.

*/

/*

* Interfaces:

* utf8 = utf16to8(utf16);

* utf16 = utf16to8(utf8);

*/

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;

}

/* Copyright (C) 1999 Masanao Izumo <iz@onicos.co.jp>

* Version: 1.0

* LastModified: Dec 25 1999

* This library is free. You can redistribute it and/or modify it.

*/

/*

* Interfaces:

* b64 = base64encode(data);

* data = base64decode(b64);

*/

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;

}

//input base64 encode

function strdecode(str){

return utf8to16(base64decode(str));

}

document.write(strdecode('5L2g5aW9Iee+juWlsyE='));

</script>

 
//PHP base64_encode <?php function str_encode($str){ return base64_encode(iconv('GB18030','UTF-8',$str)); } echo str_encode('你好!美女!'); ?> ////////////////////////////////////////////////////////////////////////////////////// 另附PHP的base64的加解密函数! {echo base64_encode($str)."<br />"; //加密 $ss='Z25pZD0yNSZncGljaT0x'; echo base64_decode($ss); //解密 ///////////////////////////////////////////////////////////////////////////////////// //JavaScript base64_decode <script language='javascript'> /* utf.js - UTF-8 <=> UTF-16 convertion * * Copyright (C) 1999 Masanao Izumo <[url=mailto:iz@onicos.co.jp]iz@onicos.co.jp[/url]> * Version: 1.0 * LastModified: Dec 25 1999 * This library is free. You can redistribute it and/or modify it. */ /* * Interfaces: * utf8 = utf16to8(utf16); * utf16 = utf16to8(utf8); */ 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; } /* Copyright (C) 1999 Masanao Izumo <[url=mailto:iz@onicos.co.jp]iz@onicos.co.jp[/url]> * Version: 1.0 * LastModified: Dec 25 1999 * This library is free. You can redistribute it and/or modify it. */ /* * Interfaces: * b64 = base64encode(data); * data = base64decode(b64); */ 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; } //input base64 encode function strdecode(str){ return utf8to16(base64decode(str)); } document.write(strdecode('5L2g5aW9Iee+juWlsyE=')); </script>
󰈣󰈤
 
 
 
>>返回首页<<
 
 热帖排行
 
 
 
静静地坐在废墟上,四周的荒凉一望无际,忽然觉得,凄凉也很美
©2005- 王朝网络 版权所有