Laravel 4 中 File::mime() 的替换(从文件扩展名中获取 mime 类型)

问题描述

Laravel 3 有一个 File::mime() 可以很容易地从扩展名中获取文件的 mime 类型的方法:

Laravel 3 had a File::mime() method which made it easy to get a file's mime type from its extension:

$extension = File::extension($path);
$mime = File::mime($extension);

升级到 Laravel 4 时出现错误:

On upgrading to Laravel 4 I get an error:

调用未定义的方法 IlluminateFilesystemFilesystem::mime()

我在 Filesystem API 文档中也看不到任何提及 mime 类型的内容.

在 Laravel 4 中获取文件 mime 类型的推荐方法是什么(请注意这不是用户上传的文件)?

What's the recommended way to get a file's mime type in Laravel 4 (please note this is not a user-uploaded file)?

推荐答案

我发现的一个解决方案是使用 Symfony HttpFoundation File 类(它已经作为依赖包含在 Laravel 4 中):

One solution I've found is to use the Symfony HttpFoundation File class (which is already included as a dependency in Laravel 4):

$file = new SymfonyComponentHttpFoundationFileFile($path);
$mime = $file->getMimeType();

实际上 File 类使用 Symfony MimeTypeGuesser 类所以这也有效:

And in fact the File class uses the Symfony MimeTypeGuesser class so this also works:

$guesser = SymfonyComponentHttpFoundationFileMimeTypeMimeTypeGuesser::getInstance();
echo $guesser->guess($path);

但不幸的是，我得到了意想不到的结果:将路径传递给 css 文件时，我得到的是 text/plain 而不是 text/css.

But unfortunately I'm getting unexpected results: I'm getting text/plain instead of text/css when passing a path to a css file.

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