Html url 变量中间的问号？
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Question mark in the middle of a url variable?
提问by townie
If I have a variable to pass through a url and it has a question mark in it, do I just need to escape the question mark? If not how can I make sure it passes through like it's supposed to? Sorry if this is a simple question but I will need this info down the line and depending on the answer I might need to change stuff now that will be a mess if I go forward without knowing.
如果我有一个变量要通过一个 url 并且它有一个问号，我是否只需要转义问号？如果不是，我如何确保它像预期的那样通过？对不起，如果这是一个简单的问题，但我将需要这些信息，根据答案，我现在可能需要更改内容，如果我在不知情的情况下继续前进，这将是一团糟。
回答by David Schwartz
A question mark URL encodes as %3F. But you should use a proper encoder for the whole thing rather than manually encoding a character.
问号 URL 编码为%3F. 但是你应该为整个事情使用一个合适的编码器，而不是手动编码一个字符。
回答by ElectroBit
According to my experience of trying to make a JavaScript search engine that links to Google, just replace the question marks with %3F. A url reads the first two characters on the right of a %as hexadecimal format.
根据我尝试制作链接到 Google 的 JavaScript 搜索引擎的经验，只需将问号替换为%3F 即可。url 将%右侧的前两个字符读取为十六进制格式。
回答by DorkRawk
Here's a full listof URL encoding characters. If you're using PHP for a server side language, you can use something like...
这是 URL 编码字符的完整列表。如果您将 PHP 用于服务器端语言，则可以使用类似...
$nice_url = urlencode("http://your.old.url");
Other languages will have similar functions build in (or you can find one online). This will take care of your question mark (and other url issues).
其他语言将内置类似的功能（或者您可以在网上找到一个）。这将处理您的问号（和其他 url 问题）。
