{"id":277,"date":"2012-12-17T09:16:30","date_gmt":"2012-12-17T09:16:30","guid":{"rendered":"20f07591c6fcb220ffe637cda29bb3f6"},"modified":"2012-12-17T09:16:30","modified_gmt":"2012-12-17T09:16:30","slug":"","status":"publish","type":"post","link":"https:\/\/www.xiaobo.li\/notes\/archives\/277","title":{"rendered":"base62"},"content":{"rendered":"

\u65b0\u6d6a\u5fae\u535a\u7684mid\u5730\u5740\u8f6c\u6362\u6210\u77ed\u683c\u5f0f\u7f16\u7801\u7684\u65b9\u6cd5\uff0c\u4f8b\u5982\uff1a<\/span><\/p>\n

221110410216147026<\/span><\/p>\n

\u8f6c\u6362\u540e\uff1a<\/span><\/p>\n

zF4mOFpN7A<\/span><\/p>\n

\u6bd4\u5982\u65b0\u6d6a\u5fae\u535a\u5730\u5740\u53ef\u4ee5\u7ec4\u88c5\u6210\u8fd9\u6837\uff1ahttp:\/\/weibo.com\/1642634100\/5en0UftjV8H<\/a>\uff0c\u5176\u4e2d\u6570\u5b57\u662f\u7528\u6237\u7684id\uff0c\u540e\u9762\u7684\u5b57\u7b26\u4e32\u662fbase62\u52a0\u5bc6\u540e\u7684mid\uff0c\u56e0\u6b64\u901a\u8fc7\u7ec4\u88c5\u8fd9\u4e24\u4e2a\uff0c\u53ef\u4ee5\u5f97\u5230\u4fe1\u606f\u7684\u4e3b\u4f53\u3002<\/span><\/p>\n

\u672c\u6587\u7684\u4ee3\u7801\uff0c\u662f\u7531http:\/\/forum.open.weibo.com\/read.php?tid=3236&uid=89934<\/a>\u7684\u535a\u4e3b\u7684js\u4ee3\u7801\u6539\u6210php\u800c\u6765<\/span><\/p>\n

\u8d34\u4e0b\u4ee3\u7801\uff0c\u8fd0\u884c\u548c\u535a\u4e3b\u7684\u4e00\u6837\uff0c\u8fd9\u91cc\u53ea\u662f\u5c06mid\u8f6c\u6210\u77ed\u683c\u5f0f\uff0c\u5176\u5b9e\u9006\u5411\u4e5f\u5f88\u597d\u6539\u4e86\uff1a<\/span><\/p>\n

\n

\n

<?php<\/span><\/p>\n

$str62keys = array(<\/span><\/p>\n

\"0\", \"1\", \"2\", \"3\", \"4\", \"5\", \"6\", \"7\", \"8\", \"9\",<\/span><\/p>\n

\"a\", \"b\", \"c\", \"d\", \"e\", \"f\", \"g\", \"h\", \"i\", <\/span><\/p>\n

\"j\", \"k\", \"l\", \"m\", \"n\", \"o\", \"p\", \"q\", <\/span><\/p>\n

\"r\", \"s\", \"t\", \"u\", \"v\", \"w\", \"x\", \"y\", <\/span><\/p>\n

\"z\",\"A\", \"B\", \"C\", \"D\", \"E\", \"F\", \"G\", \"H\", <\/span><\/p>\n

\"I\", \"J\", \"K\", \"L\", \"M\", \"N\", \"O\", \"P\", <\/span><\/p>\n

\"Q\", \"R\", \"S\", \"T\", \"U\", \"V\", \"W\", \"X\", \"Y\", \"Z\"<\/span><\/p>\n

);<\/span><\/p>\n



\n<\/span><\/p>\n

\/**<\/span><\/p>\n

 * 10\u8fdb\u5236\u503c\u8f6c\u6362\u4e3a62\u8fdb\u5236<\/span><\/p>\n

 * @param {String} int10 10\u8fdb\u5236\u503c<\/span><\/p>\n

 * @return {String} 62\u8fdb\u5236\u503c<\/span><\/p>\n

 *\/<\/span><\/p>\n

function int10to62($int10) {<\/span><\/p>\n

global $str62keys;<\/span><\/p>\n

$s62 = '';<\/span><\/p>\n

$r = 0;<\/span><\/p>\n

while ($int10 != 0)<\/span><\/p>\n

{<\/span><\/p>\n

$r = $int10 % 62;<\/span><\/p>\n

$s62 = $str62keys[$r].$s62;<\/span><\/p>\n

$int10 = floor($int10 \/ 62);<\/span><\/p>\n

}<\/span><\/p>\n

return $s62;<\/span><\/p>\n

}<\/span><\/p>\n

\/**<\/span><\/p>\n

 * <\/span><\/p>\n

 * \u901a\u8fc7mid\u83b7\u5f97\u77ed\u683c\u5f0f<\/span><\/p>\n

 * @param string $mid<\/span><\/p>\n

 * @return \u77ed\u683c\u5f0f<\/span><\/p>\n

 *\/<\/span><\/p>\n

function getCodeByMid($mid){<\/span><\/p>\n

$url = '';<\/span><\/p>\n

for ($i = strlen($mid) - 7; $i > -7; $i -=7) <\/span>\/\/\u4ece\u6700\u540e\u5f80\u524d\u4ee57\u5b57\u8282\u4e3a\u4e00\u7ec4\u8bfb\u53d6mid<\/span><\/p>\n

{<\/span><\/p>\n

$offset1 = $i < 0 ? 0 : $i;<\/span><\/p>\n

$offset2 = $i + 7;<\/span><\/p>\n

$num = substr($mid, $offset1,$offset2-$offset1); <\/span><\/p>\n

\/\/mid.substring(offset1, offset2);<\/span> <\/span><\/span><\/p>\n

$num = int10to62($num);<\/span><\/p>\n

$url = $num .$url;<\/span><\/p>\n

}<\/span><\/p>\n

\n

return $url;<\/span><\/p>\n

}<\/span><\/p>\n

echo getCodeByMid('221110410216147026');<\/span><\/p>\n

?><\/span><\/p>\n


\n<\/span> \u4e3a\u4e86\u65b9\u4fbf\uff0c\u8fd9\u91cc\u628a\u90a3\u4f4d\u535a\u4e3b\u7684js\u4ee3\u7801\u4e5f\u8d34\u5728\u8fd9\u91cc\uff0c\u5927\u5bb6\u53ef\u4ee5\u505a\u4e00\u4e2a\u5bf9\u7167\uff1a<\/span> <\/p>\n


\n<\/span> <\/p>\n
\n
\n
\/**<\/span><\/div>\n
 * \u65b0\u6d6a\u5fae\u535amid\u4e0eurl\u4e92\u8f6c\u5b9e\u7528\u5de5\u5177<\/span><\/div>\n
 * \u4f5c\u8005: XiNGRZ (http:\/\/weibo.com\/xingrz)<\/span><\/div>\n
 *\/<\/span><\/div>\n


\n<\/span><\/div>\n
var WeiboUtility = {};<\/span><\/div>\n


\n<\/span><\/div>\n
\/**<\/span><\/div>\n
 * 62\u8fdb\u5236\u5b57\u5178<\/span><\/div>\n
 *\/<\/span><\/div>\n
WeiboUtility.str62keys = [<\/span><\/div>\n
\"0\", \"1\", \"2\", \"3\", \"4\", \"5\", \"6\", \"7\", \"8\", \"9\",<\/span><\/div>\n
\"a\", \"b\", \"c\", \"d\", \"e\", \"f\", \"g\", \"h\", \"i\", \"j\", <\/span><\/div>\n
\"k\", \"l\", \"m\", \"n\", \"o\", \"p\", \"q\", \"r\", \"s\", \"t\", <\/span><\/div>\n
\"u\", \"v\", \"w\", \"x\", \"y\", \"z\",<\/span><\/div>\n
\"A\", \"B\", \"C\", \"D\", \"E\", \"F\", \"G\", \"H\", \"I\", \"J\", <\/span><\/div>\n
\"K\", \"L\", \"M\", \"N\", \"O\", \"P\", \"Q\", \"R\", \"S\", \"T\", <\/span><\/div>\n
\"U\", \"V\", \"W\", \"X\", \"Y\", \"Z\"<\/span><\/div>\n
];<\/span><\/div>\n


\n<\/span><\/div>\n
\/**<\/span><\/div>\n
 * 62\u8fdb\u5236\u503c\u8f6c\u6362\u4e3a10\u8fdb\u5236<\/span><\/div>\n
 * @param {String} str62 62\u8fdb\u5236\u503c<\/span><\/div>\n
 * @return {String} 10\u8fdb\u5236\u503c<\/span><\/div>\n
 *\/<\/span><\/div>\n
WeiboUtility.str62to10 = function(str62) {<\/span><\/div>\n
var i10 = 0;<\/span><\/div>\n
for (var i = 0; i < str62.length; i++)<\/span><\/div>\n
{<\/span><\/div>\n
var n = str62.length - i - 1;<\/span><\/div>\n
var s = str62[i];<\/span><\/div>\n
i10 += this.str62keys.indexOf(s) * Math.pow(62, n);<\/span><\/div>\n
}<\/span><\/div>\n
return i10;<\/span><\/div>\n
};<\/span><\/div>\n


\n<\/span><\/div>\n
\/**<\/span><\/div>\n
 * 10\u8fdb\u5236\u503c\u8f6c\u6362\u4e3a62\u8fdb\u5236<\/span><\/div>\n
 * @param {String} int10 10\u8fdb\u5236\u503c<\/span><\/div>\n
 * @return {String} 62\u8fdb\u5236\u503c<\/span><\/div>\n
 *\/<\/span><\/div>\n
WeiboUtility.int10to62 = function(int10) {<\/span><\/div>\n
var s62 = '';<\/span><\/div>\n
var r = 0;<\/span><\/div>\n
while (int10 != 0)<\/span><\/div>\n
{<\/span><\/div>\n
r = int10 % 62;<\/span><\/div>\n
s62 = this.str62keys[r] + s62;<\/span><\/div>\n
int10 = Math.floor(int10 \/ 62);<\/span><\/div>\n
}<\/span><\/div>\n
return s62;<\/span><\/div>\n
};<\/span><\/div>\n


\n<\/span><\/div>\n
\/**<\/span><\/div>\n
 * URL\u5b57\u7b26\u8f6c\u6362\u4e3amid<\/span><\/div>\n
 * @param {String} url \u5fae\u535aURL\u5b57\u7b26\uff0c\u5982 \"wr4mOFqpbO\"<\/span><\/div>\n
 * @return {String} \u5fae\u535amid\uff0c\u5982 \"201110410216293360\"<\/span><\/div>\n
 *\/<\/span><\/div>\n
WeiboUtility.url2mid = function(url) {<\/span><\/div>\n
var mid = '';<\/span><\/div>\n
<\/div>\n
for (var i = url.length - 4; i > -4; i = i - 4) <\/span>\/\/\u4ece\u6700\u540e\u5f80\u524d\u4ee54\u5b57\u8282\u4e3a\u4e00\u7ec4\u8bfb\u53d6URL\u5b57\u7b26<\/span><\/div>\n
{<\/span><\/div>\n
var offset1 = i < 0 ? 0 : i;<\/span><\/div>\n
var offset2 = i + 4;<\/span><\/div>\n
var str = url.substring(offset1, offset2);<\/span><\/div>\n
<\/div>\n
str = this.str62to10(str);<\/span><\/div>\n
if (offset1 > 0) <\/span>\/\/\u82e5\u4e0d\u662f\u7b2c\u4e00\u7ec4\uff0c\u5219\u4e0d\u8db37\u4f4d\u88650<\/span><\/div>\n
{<\/span><\/div>\n
while (str.length < 7)<\/span><\/div>\n
{<\/span><\/div>\n
str = '0' + str;<\/span><\/div>\n
}<\/span><\/div>\n
}<\/span><\/div>\n
<\/div>\n
mid = str + mid;<\/span><\/div>\n
}<\/span><\/div>\n
<\/div>\n
return mid;<\/span><\/div>\n
};<\/span><\/div>\n


\n<\/span><\/div>\n
\/**<\/span><\/div>\n
 * mid\u8f6c\u6362\u4e3aURL\u5b57\u7b26<\/span><\/div>\n
 * @param {String} mid \u5fae\u535amid\uff0c\u5982 \"201110410216293360\"<\/span><\/div>\n
 * @return {String} \u5fae\u535aURL\u5b57\u7b26\uff0c\u5982 \"wr4mOFqpbO\"<\/span><\/div>\n
 *\/<\/span><\/div>\n
WeiboUtility.mid2url = function(mid) {<\/span><\/div>\n
if (typeof(mid) != 'string') return false; <\/span>\/\/mid\u6570\u503c\u8f83\u5927\uff0c\u5fc5\u987b\u4e3a\u5b57\u7b26\u4e32\uff01<\/span><\/div>\n
<\/div>\n
var url = '';<\/span><\/div>\n
<\/div>\n
for (var i = mid.length - 7; i > -7; i = i - 7) <\/span>\/\/\u4ece\u6700\u540e\u5f80\u524d\u4ee57\u5b57\u8282\u4e3a\u4e00\u7ec4\u8bfb\u53d6mid<\/span><\/div>\n
{<\/span><\/div>\n
var offset1 = i < 0 ? 0 : i;<\/span><\/div>\n
var offset2 = i + 7;<\/span><\/div>\n
var num = mid.substring(offset1, offset2);<\/span><\/div>\n
<\/div>\n
num = this.int10to62(num);<\/span><\/div>\n
url = num + url;<\/span><\/div>\n
}<\/span><\/div>\n
<\/div>\n
return url;<\/span><\/div>\n
};<\/span> <\/p>\n
\n
 <\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
<\/div>\n