在 url 中传递一个百分比 (%) 符号并使用 php 获取它的确切值
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/17342671/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Pass a percent (%) sign in a url and get exact value of it using php
提问by Sumit Bijvani
I am trying to pass percent (%) sign in url like
我正在尝试通过百分比（％）登录网址，例如
%B6011000995504101^SB
but when I echo, it returns
但是当我回声时，它返回
?011000995504101^SB
I want exact same value as I pass it in URL.
我想要与在 URL 中传递的值完全相同的值。
I have tried to use urlencode() function, but it give me output like this...
我曾尝试使用 urlencode() 函数，但它给了我这样的输出......
%B6011000995504101%5ESB
please help me regarding this
请帮我解决这个问题
回答by IanPudney
Answer:
回答：
To send a %sign in a url, instead send %25.
要%在 url 中发送签名，请改为发送%25.
In your case, in order for php to see a percent sign, you must pass the character string %25B6011000995504101^SBto the server.
在您的情况下，为了让 php 看到百分号，您必须将字符串传递%25B6011000995504101^SB给服务器。
Why:
为什么：
In URLs, the percent sign has special meaning. Is used to encode special characters. For example, &is the separator between parameters, so if you want your parameter to actually containan &, you instead write %26. Because the percent sign is used to encode special characters, it is alsoa special character, and so if you want to actually send a percent sign, it must also be encoded. The encoding for a percent sign is %25.
在 URL 中，百分号具有特殊含义。用于编码特殊字符。例如，&是参数之间的分隔符，因此如果您希望参数实际包含一个&，则改为编写%26. 因为百分号是用来对特殊字符进行编码的，它也是一种特殊字符，所以如果要实际发送一个百分号，也必须对其进行编码。百分号的编码是%25.
回答by Nate from Kalamazoo
Before including a raw string in a URL it's a good idea to pass it through urlencode like so:
在 URL 中包含原始字符串之前，最好像这样通过 urlencode 传递它：
<?php
$original='%B6011000995504101^SB';
$updated=urlencode($original);
echo "<a href=\"some_page.php?$updated\">Link here</a>";
?>
The receiving page will know what to do - give this example a try on your webserver:
接收页面会知道该怎么做 - 在您的网络服务器上试试这个例子：
<?php
if($_GET['argument']) {
echo "<p>You passed in the argument "$_GET[argument]"</p>";
}else {
echo "<p>No argument was passed.</p>";
}
$original='%B6011000995504101^SB';
$updated=urlencode($original);
echo "<a href=\"urlencode.php?argument=$updated\">Link here</a>";
?>
(name the file urlencode.php)
（命名文件urlencode.php）
