标题内容类型带有BOM的字符集UTF-8 [英] Header Content Type Charset UTF-8 with BOM

问题描述

我目前正在制作一些文件，有些文件需要下载和上传。该文件具有不同的编码，并且仅当文件以包含BOM的UTF-8打开时才有效。

目前，我正在使用这个简单的头文件头文件（'Content-Type：text / html; charset = utf-8'）; 但我怎样才能改变设置，因此文件文件将被视为带有BOM的UTF-8。 b
$ b

希望得到一些帮助。
Thanks！

解决方案

绝对不需要在HTML文件中包含BOM。 （如果它真的包含不同的编码，那么UTF-8 BOM会被打破，所以听起来你有点困惑。）

如果你期望文件将其保存到磁盘并用于不需要UTF-8的地方，您可以添加一个元素来指示编码：

< meta http-equiv ='Content-Type'content ='text / html;如果实际上你使用的是不同于UTF-8的编码，那么，而不是BOM，只需更改meta属性中的值即可。

如果您真的必须拥有BOM，那么您需要确保它是您输出的第一件东西，例如

echo\xEF\xBB\xBF;

请参阅为一个实际上有意义的例子。

Im currently making a file that some have to download and upload. The file have som differents encodings and it only works if the file is opened with UTF-8 with BOM.

Currently im using this simple header header('Content-Type: text/html; charset=utf-8'); but how can i change the settings so file file would be seen as UTF-8 with BOM.

Hoping for some help. Thanks!

解决方案

There's absolutely no need to include a BOM in an HTML file. (If it really includes different encodings, then a UTF-8 BOM would be broken, so it sounds like you're a bit confused.)

If you expect the file to be saved to disk and used in places where UTF-8 isn't expected, you could add a meta element to indicate the encoding as well:

<meta http-equiv='Content-Type' content='text/html; charset=utf-8'>

If in fact you are using a different encoding than UTF-8, then rather than a BOM, just change the value in the meta attribute.

If you really must have a BOM in there then you'll need to make sure that it's first thing you output, e.g.

echo "\xEF\xBB\xBF";

See How can I output a UTF-8 CSV in PHP that Excel will read properly? for an example where that actually makes sense.

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