序列化字符串中的偏移错误没有意义

Question

所以当我尝试在 PHP 中序列化它时，这个字符串显示为 false。

我使用 2 个在线序列化网站。

第一个测试返回正常。就是这个网站：http://blog.tanist.co.uk/files/unserialize/

另一个网站显示了真正的问题。或者是吗？我很困惑。这是这个网站：https://www.functions-online.com/unserialize.html

我得到的第一个错误是“offset 1095 of 7441 bytes” 恰好在s:6:"filter"; 中的“t”处（位于 sn-p 的第 12 行）

我认为这意味着它出于某种原因将字符数读取为 4？ 我尝试替换所有字符，包括引号以确保它们不是代表多个字节的字符的奇怪版本。那没有用。但是，如果我将“过滤器”更改为“过滤器”，它就起作用了。它移动到下一个偏移误差。

我在序列化之前尝试了很多对字符串的转换，我在网上找到了解决方案。

utf8_encode

base64_decode

他们都没有帮助。

这是字符串。 （直接从带有 utf8_general_ci 排序规则的 mysql 表中复制）

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<a href="/who-we-are/structure/conferences/alaska/">Alaska Conference of the Evangelical Covenant Church</a><br />
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<a href="/who-we-are/structure/conferences/north-pacific/">Pacific Northwest Conference</a><br />
<a href="/who-we-are/structure/conferences/pacific-southwest/">Pacific Southwest Conference</a><br />
<a href="/who-we-are/structure/conferences/southeast/">Southeast Conference</a></p>";s:6:"filter";b:0;s:5:"class";s:1:"S";}i:4;a:4:{s:5:"title";s:9:"Translate";s:4:"text";s:614:"<div id="google_translate_element"></div><script>
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Answer 1

Error at offset 1095 of 7441 bytes 实际上是正确的。它的意思并不像你想象的那样。

从偏移量 62 开始。请注意，s:1025:" 开始一个从偏移量 70 开始的字符串，据称的长度为 1025，这意味着该字符串的结束引号应位于偏移量 1095 (70 + 1025)...但事实并非如此。

错误是“在”偏移量 1095，因为那里唯一可能的有效值是 "... 而这不是在那里找到的。它实际上早了 11 个字节，在偏移 1084 处。因此，这个错误是完全正确的，尽管乍一看有点违反直觉。

这是一个 -11 个字节的错误，奇怪/方便/不太令人惊讶的是，您会发现您的字符串中有 11 个换行符，这正好解释了如果 \r\n 仅替换为\r 或仅\n 可能仍然正确显示但不正确。

怎么会这样，你需要回溯调查，但错误是正确的；您有一个已损坏/损坏/不当操作且无法再解码的序列化值。