序列化 PHP 字符串的结构
时间：2023-03-19问题描述
我想知道是否有人可以将我指向一个记录了序列化 php 字符串详细信息的资源.我基本上想知道格式/结构，以便我可以在 VB.NET 中编写一个函数来序列化/反序列化它.
I was wondering if anyone could point me to a resource where the details of a serialized php string is documented. I would basically like to know the format/structure so I can write a function in VB.NET to serialize/deserialize it back.
谢谢！
推荐答案
基本结构如下:
标量类型:
布尔值序列化为:
Booleans are serialized as:
b:<i>;
其中 是一个整数，其值为 0(假)或 1(真).
where <i> is an integer with a value of either 0 (false) or 1 (true).
整数序列化为:
i:<i>;
其中 是整数值.
浮点数被序列化为(d 表示双精度):
Floats are serialized as (with d meaning double):
d:<f>;
其中
字符串被序列化为:
s:<i>:"<s>";
其中是表示
where <i> is an integer representing the string length of <s>, and <s> is the string value.
特殊类型:
null简单地序列化为:
N;
化合物类型:
数组被序列化为:
Arrays are serialized as:
a:<i>:{<elements>}
其中 是一个整数，表示数组中元素的数量，
where <i> is an integer representing the number of elements in the array, and <elements> zero or more serialized key value pairs:
<key><value>
其中
where <key> represents a serialized scalar type, and <value> any value that is serializable.
对象被序列化为:
O:<i>:"<s>":<i>:{<properties>}
其中第一个是一个整数，表示 是一个整数，表示对象属性的数量.
where the first <i> is an integer representing the string length of <s>, and <s> is the fully qualified class name (class name prepended with full namespace). The second <i> is an integer representing the number of object properties. <properties> are zero or more serialized name value pairs:
<name><value>
其中
where <name> is a serialized string representing the property name, and <value> any value that is serializable.
There's a catch with <name> though:
s:<i>:"<s>";
其中是一个整数，表示
where <i> is an integer representing the string length of <s>. But the values of <s> differs per visibility of properties:
一个.使用 public 属性
a. With public properties <s> is the simple name of the property.
B.但是，对于 protected 属性， * — 星号，用两个 NUL 字符括起来(即 chr(0)).
b. With protected properties, however, <s> is the simple name of the property, prepended with * — an asterix, enclosed in two NUL characters (i.e. chr(0)).
c.对于 private 属性， — NUL 字符括起来，其中
c. And with private properties, <s> is the simple name of the property, prepended with <s> — <s>, enclosed in two NUL characters, where <s> is the fully qualified class name.
<小时>
还有一些其他情况，例如 R:<i>;，代表引用，我在这里没有提到(因为老实说我还没有弄清楚确切的工作原理还没有)，但这应该会让您对 PHP 的序列化机制有一个不错的了解.
There are a few other cases, such as R:<i>;, that represents references, that I haven't mentioned here (because I honestly haven't figured out the exact workings of it yet), but this should give you a decent idea about PHP's serializing mechanism.
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