PHP - 我可以使用 mb_detect_encoding () + iconv() 将字符串转换为 UTF-8？
所有，
我正在构建一个小型网络应用程序，它将接受用户生成的内容。此内容将通过 enctype="multipart/form-data" 表单和表单上传。浏览按钮。
据我了解，如果字符串不包含不重叠的字符，则它无法区分作为彼此子集的字符集。这是有道理的。
我的问题是：这有关系吗？如果我使用 mb_detect_encoding() 来获得 PHP 的最佳猜测，然后使用该最佳猜测使用 iconv() 编码为 UTF-8，我会遇到麻烦吗，如果是的话为什么？
换句话说，如果 mb_detect_encoding() 对完全位于 2 个字符集重叠范围内的小字符串进行了错误的编码，那么当我执行 iconv( 时，我会得到不同的结果吗？ ) 如果我在函数中使用了正确的输入编码，会怎么样？
编辑：我重写了问题以专门解决通过浏览按钮上传的文本文件。
All,
I am building a small web app that will accept user-generated content. This content will be uploaded via a enctype="multipart/form-data" form & a browse button.
As I understand mb_detect_encoding(), it cannot distinguish between character sets that are subsets of each others if the string doesn't include characters that are not in the overlap. That makes sense.
My question is: does this matter? If I use mb_detect_encoding() to get PHP's best guess, and then use this best guess to encode into UTF-8 using iconv(), am I going to run into trouble, and if so why?
In other words, if mb_detect_encoding() come up with the wrong encoding on a small string that is entirely inside the overlap of 2 charsets, will I get a different result when I then do iconv() than I would if I had used the proper input encoding in the function?
EDIT: I rewrote the question to specifically address text files uploaded via browse buttons.
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