是否可以对包含url编码的url的urlencode?

问题描述：

我有一个使用Facebook，Twitter，美味共享链接的网站.它们包含您要共享的网站的url编码的url.问题是我然后想通过php重定向页面发送facebook/twitter/delicious url.

I have a website that uses the facebook, twitter, delicious share links. They contain a a url encoded url of the website that you wish to share. The problem is I then want to send the facebook/twitter/delicious url through a php redirect page.

在已编码的网址中对网址进行编码会起作用吗?会不会有副作用?

Will it work to encode a url within an encoded url? Will there be side effects?

为简化我的问题:

www.website.com/redirect.php?url=" URLENCODED (http://www.facbook.com/sharer.php?t='URLENCODED(title)'&u='URLENCODED(http://www.hotel.com)')

答

您可以使用百分比编码对字符串进行多次编码，并通过将其解码相同次数来获得原始值:

You can encode a string multiple times with the percent encoding and get the original value by decoding it the same amount of times:

$str = implode(range("\x00", "\xFF"));
var_dump($str === urldecode(urldecode(urldecode(urlencode(urlencode(urlencode($str)))))));

此处，$str的值被编码3次，然后解码3次.重复编码和解码的输出与$str的值相同.

Here the value of $str is encoded three times and then decoded three times. The output of that repeated encoding and decoding is identical to the value of $str.

所以尝试一下:

'http://example.com/redirect.php?url='.urlencode('http://www.facbook.com/sharer.php?t='.urlencode('title').'&u='.urlencode('http://www.hotel.com'))

是否可以对包含url编码的url的urlencode?

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