/* phpserializer.js - JavaScript to PHP serialize / unserialize class.
*
* This class is designed to convert php variables to javascript
* and javascript variables to php with a php serialize unserialize
* compatible way.
*
* Copyright (C) 2006 Ma Bingyao <[email protected]>
* Version: 3.0c
* LastModified: Jun 2, 2006
* This library is free. You can redistribute it and/or modify it.
* http://www.coolcode.cn/?p=171
*
*2011-01-05 likefei edit without encoding
*ser_string()
*unser_string()
*
*gbk encoding
*不同的编码中文的长度不同，需要调整一下函数
*chkLength(strTemp)
*/
function serialize(o) {
var p = 0, sb = [], ht = [], hv = 1;
function classname(o) {
if (typeof(o) == "undefined" || typeof(o.constructor) == "undefined") return '';
var c = o.constructor.toString();
c = utf16to8(c.substr(0, c.indexOf('(')).replace(/(^\s*function\s*)|(\s*$)/ig, ''));
return ((c == '') ? 'Object' : c);
}
function is_int(n) {
var s = n.toString(), l = s.length;
if (l > 11) return false;
for (var i = (s.charAt(0) == '-') ? 1 : 0; i < l; i++) {
switch (s.charAt(i)) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9': break;
default : return false;
}
}
return !(n < -2147483648 || n > 2147483647);
}
function in_ht(o) {
for (k in ht) if (ht[k] === o) return k;
return false;
}
function ser_null() {
sb[p++] = 'N;';
}
function ser_boolean(b) {
sb[p++] = (b ? 'b:1;' : 'b:0;');
}
function ser_integer(i) {
sb[p++] = 'i:' + i + ';';
}
function ser_double(d) {
if (d == Number.POSITIVE_INFINITY) d = 'INF';
else if (d == Number.NEGATIVE_INFINITY) d = '-INF';
sb[p++] = 'd:' + d + ';';
}
function ser_string(s) {
//var utf8 = utf16to8(s);
var utf8 = s;//当判断是中文时不进行编码转换
sb[p++] = 's:' + chkLength(utf8) + ':"';
sb[p++] = utf8;
sb[p++] = '";';
}
function ser_array(a) {
sb[p++] = 'a:';
var lp = p;
sb[p++] = 0;
sb[p++] = ':{';
for (var k in a) {
if (typeof(a[k]) != 'function') {
is_int(k) ? ser_integer(k) : ser_string(k);
__serialize(a[k]);
sb[lp]++;
}
}
sb[p++] = '}';
}
function ser_object(o) {
var cn = classname(o);
if (cn == '') ser_null();
else if (typeof(o.serialize) != 'function') {
sb[p++] = 'O:' + cn.length + ':"';
sb[p++] = cn;
sb[p++] = '":';
var lp = p;
sb[p++] = 0;
sb[p++] = ':{';
if (typeof(o.__sleep) == 'function') {
var a = o.__sleep();
for (var kk in a) {
ser_string(a[kk]);
__serialize(o[a[kk]]);
sb[lp]++;
}
}
else {
for (var k in o) {
if (typeof(o[k]) != 'function') {
ser_string(k);
__serialize(o[k]);
sb[lp]++;
}
}
}
sb[p++] = '}';
}
else {
var cs = o.serialize();
sb[p++] = 'C:' + cn.length + ':"';
sb[p++] = cn;
sb[p++] = '":' + cs.length + ':{';
sb[p++] = cs;
sb[p++] = "}";
}
}
function ser_pointref(R) {
sb[p++] = "R:" + R + ";";
}
function ser_ref(r) {
sb[p++] = "r:" + r + ";";
}
function __serialize(o) {
if (o == null || o.constructor == Function) {
hv++;
ser_null();
}
else switch (o.constructor) {
case Boolean: {
hv++;
ser_boolean(o);
break;
}
case Number: {
hv++;
is_int(o) ? ser_integer(o) : ser_double(o);
break;
}
case String: {
hv++;
ser_string(o);
break;
}
case Array: {
var r = in_ht(o);
if (r) {
ser_pointref(r);
}
else {
ht[hv++] = o;
ser_array(o);
}
break;
}
default: {
var r = in_ht(o);
if (r) {
hv++;
ser_ref(r);
}
else {
ht[hv++] = o;
ser_object(o);
}
break;
}
}
}
__serialize(o);
return sb.join('');
}
function unserialize(ss) {
var p = 0, ht = [], hv = 1; r = null;
function unser_null() {
p++;
return null;
}
function unser_boolean() {
p++;
var b = (ss.charAt(p++) == '1');
p++;
return b;
}
function unser_integer() {
p++;
var i = parseInt(ss.substring(p, p = ss.indexOf(';', p)));
p++;
return i;
}
function unser_double() {
p++;
var d = ss.substring(p, p = ss.indexOf(';', p));
switch (d) {
case 'INF': d = Number.POSITIVE_INFINITY; break;
case '-INF': d = Number.NEGATIVE_INFINITY; break;
default: d = parseFloat(d);
}
p++;
return d;
}
function unser_string() {
p++;
var l = parseInt(ss.substring(p, p = ss.indexOf(':', p)));
p += 2;
//var s = utf8to16(ss.substring(p, p += l));
//var s = ss.substring(p, p += l);
var s = subChnStr(ss,l,p);
p += s.length;
p += 2;
return s;
}
function unser_array() {
p++;
var n = parseInt(ss.substring(p, p = ss.indexOf(':', p)));
p += 2;
var a = [];
ht[hv++] = a;
for (var i = 0; i < n; i++) {
var k;
switch (ss.charAt(p++)) {
case 'i': k = unser_integer(); break;
case 's': k = unser_string(); break;
case 'U': k = unser_unicode_string(); break;
default: return false;
}
a[k] = __unserialize();
}
p++;
return a;
}
function unser_object() {
p++;
var l = parseInt(ss.substring(p, p = ss.indexOf(':', p)));
p += 2;
var cn = utf8to16(ss.substring(p, p += l));
p += 2;
var n = parseInt(ss.substring(p, p = ss.indexOf(':', p)));
p += 2;
if (eval(['typeof(', cn, ') == "undefined"'].join(''))) {
eval(['function ', cn, '(){}'].join(''));
}
var o = eval(['new ', cn, '()'].join(''));
ht[hv++] = o;
for (var i = 0; i < n; i++) {
var k;
switch (ss.charAt(p++)) {
case 's': k = unser_string(); break;
case 'U': k = unser_unicode_string(); break;
default: return false;
}
if (k.charAt(0) == '\0') {
k = k.substring(k.indexOf('\0', 1) + 1, k.length);
}
o[k] = __unserialize();
}
p++;
if (typeof(o.__wakeup) == 'function') o.__wakeup();
return o;
}
function unser_custom_object() {
p++;
var l = parseInt(ss.substring(p, p = ss.indexOf(':', p)));
p += 2;
var cn = utf8to16(ss.substring(p, p += l));
p += 2;
var n = parseInt(ss.substring(p, p = ss.indexOf(':', p)));
p += 2;
if (eval(['typeof(', cn, ') == "undefined"'].join(''))) {
eval(['function ', cn, '(){}'].join(''));
}
var o = eval(['new ', cn, '()'].join(''));
ht[hv++] = o;
if (typeof(o.unserialize) != 'function') p += n;
else o.unserialize(ss.substring(p, p += n));
p++;
return o;
}
function unser_unicode_string() {
p++;
var l = parseInt(ss.substring(p, p = ss.indexOf(':', p)));
p += 2;
var sb = [];
for (i = 0; i < l; i++) {
if ((sb[i] = ss.charAt(p++)) == '\\') {
sb[i] = String.fromCharCode(parseInt(ss.substring(p, p += 4), 16));
}
}
p += 2;
return sb.join('');
}
function unser_ref() {
p++;
var r = parseInt(ss.substring(p, p = ss.indexOf(';', p)));
p++;
return ht
;
}
function __unserialize() {
switch (ss.charAt(p++)) {
case 'N': return ht[hv++] = unser_null();
case 'b': return ht[hv++] = unser_boolean();
case 'i': return ht[hv++] = unser_integer();
case 'd': return ht[hv++] = unser_double();
case 's': return ht[hv++] = unser_string();
case 'U': return ht[hv++] = unser_unicode_string();
case 'r': return ht[hv++] = unser_ref();
case 'a': return unser_array();
case 'O': return unser_object();
case 'C': return unser_custom_object();
case 'R': return unser_ref();
default: return false;
}
}
return __unserialize();
}
//gbk encoding下的中文字符长度
function chkLength(strTemp)
{
var i,sum;
sum=0;
for(i=0;i<strTemp.length;i++)
{
if ((strTemp.charCodeAt(i)>=0) && (strTemp.charCodeAt(i)<=255))
sum=sum+1;
else
sum=sum+2;
}
return sum;
}
//gbk encoding中文字符截取（中文占两个字符）
//utf8 encoding中文字符截取（中文占三个字符）
//做的改动：增加截取字符串的开始位置
function subChnStr(str, len, start, hasDot)
{
var newLength = 0;
var newStr = "";
var chineseRegex = /[^\x00-\xff]/g;
var singleChar = "";
var strLength = str.replace(chineseRegex,"**").length;
for(var i = start;i < strLength;i++)
{
singleChar = str.charAt(i).toString();
if(singleChar.match(chineseRegex) != null)
{
newLength += 2;
}
else
{
newLength++;
}
if(newLength > len)
{
break;
}
newStr += singleChar;
}
if(hasDot && strLength > len)
{
newStr += "...";
}
return newStr;
}
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