仅对URL的目录和文件名进行urlencode [英] urlencode only the directory and file names of a URL

问题描述

我需要使用PHP对URL的目录路径和文件名进行URL编码.

I need to URL encode just the directory path and file name of a URL using PHP.

所以我想对类似http://example.com/file name的东西进行编码，并使其生成http://example.com/file%20name.

So I want to encode something like http://example.com/file name and have it result in http://example.com/file%20name.

当然，如果我执行urlencode('http://example.com/file name');，那么我最终会得到http%3A%2F%2Fexample.com%2Ffile+name.

Of course, if I do urlencode('http://example.com/file name'); then I end up with http%3A%2F%2Fexample.com%2Ffile+name.

一个明显的解决方案(无论如何对我来说)是使用parse_url()将URL拆分为方案，主机等，然后仅urlencode()需要路径的部分(如路径).然后，我将使用http_build_url()重新组装URL.

The obvious (to me, anyway) solution is to use parse_url() to split the URL into scheme, host, etc. and then just urlencode() the parts that need it like the path. Then, I would reassemble the URL using http_build_url().

有没有比这更优雅的解决方案了?还是这基本上是要走的路?

Is there a more elegant solution than that? Or is that basically the way to go?

推荐答案

@deceze无疑使我走了正确的道路，所以请投票支持他的答案.但这确实是有效的:

@deceze definitely got me going down the right path, so go upvote his answer. But here is exactly what worked:

    $encoded_url = preg_replace_callback('#://([^/]+)/([^?]+)#', function ($match) {
                return '://' . $match[1] . '/' . join('/', array_map('rawurlencode', explode('/', $match[2])));
            }, $unencoded_url);

有几件事要注意:

• http_build_url需要安装PECL，因此如果您将代码分发给其他人(如本例所示)，您可能希望避免使用它，并像我在此处那样坚持进行reg exp解析(从@deceze的网站大量窃取答案-再次，投票赞成该内容.)

• http_build_url requires a PECL install so if you are distributing your code to others (as I am in this case) you might want to avoid it and stick with reg exp parsing like I did here (stealing heavily from @deceze's answer--again, go upvote that thing).

urlencode()不是要走的路！您需要rawurlencode()作为路径，以便空格被编码为%20而不是+.对于查询字符串，将空格编码为+很好，但对于路径则不太适合.

urlencode() is not the way to go! You need rawurlencode() for the path so that spaces get encoded as %20 and not +. Encoding spaces as + is fine for query strings, but not so hot for paths.

这不适用于需要用户名/密码编码的URL.对于我的用例，我认为我并不在乎这些，因此我并不担心.但是，如果您的用例在这方面有所不同，则需要注意这一点.

This won't work for URLs that need a username/password encoded. For my use case, I don't think I care about those, so I'm not worried. But if your use case is different in that regard, you'll need to take care of that.

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