mb_detect_encoding无法正常使用Windows-1250（CP1250） [英] mb_detect_encoding doesn't properly working with Windows-1250 (CP1250)

问题描述

在 mb_detect_encoding（）中检测CP1250有问题在我的情况下，我想检测3个编码：

I have problem with detecting CP1250 in mb_detect_encoding(), in my case I want detect 3 encodings:

mb_detect_encoding($string, 'UTF-8,ISO-8859-2,Windows-1250')

但Windows不支持编码，任何解决方案？

But Windows isn't in supported encodings, any solution?

推荐答案

mb_detect_encoding 始终检测单字节编码。您可以在 mb_detect_order ：

mb_detect_encoding always "detects" single-byte encodings. You can read about this in the documentation for mb_detect_order:

mbstring目前实现以下编码检测
过滤器。如果以下
编码存在无效的字节序列，编码检测将失败。

mbstring currently implements the following encoding detection filters. If there is an invalid byte sequence for the following encodings, encoding detection will fail.

UTF-8，UTF-7，ASCII，
EUC-JP，SJIS，eucJP-win，SJIS-win，JIS，ISO-2022-JP

UTF-8, UTF-7, ASCII, EUC-JP,SJIS, eucJP-win, SJIS-win, JIS, ISO-2022-JP

对于ISO-8859-X，mbstring总是检测为ISO-8859 -X。

For ISO-8859-X, mbstring always detects as ISO-8859-X.

对于UTF-16，UTF-32，UCS2和UCS4，编码检测将一直失败
。

For UTF-16, UTF-32, UCS2 and UCS4, encoding detection will fail always.

结论：

1. 要求检测ISO-8859-2是无意义的;它总是会告诉你是的，就是这样（除非它首先检测到UTF-8）。


2. Windows-1250不支持，但即使它会正常工作像ISO-8859-2。

一般来说，不可能准确地检测单字节编码。如果您发现自己需要在PHP中执行此操作，则需要手动执行;不要指望非常好的结果。

In general, it is impossible to detect single-byte encodings with accuracy. If you find yourself needing to do that in PHP you will need to do it manually; don't expect very good results.

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