php 如何解码 & 来自 URL 以便 header() 工作（urldecode 不工作）
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How to Decode the & from a URL so that header() works (urldecode not working)
提问by ProgrammerGirl
I have the following URL: $url = 'http://mysite.com/?p=welcome&x=1&y=2';
我有以下网址： $url = 'http://mysite.com/?p=welcome&x=1&y=2';
I need to decode it so that header("Location: $url");actually works.
我需要解码它，以便header("Location: $url");实际工作。
However, using urldecode($url)is not working because it's notdecoding the &-> &and so the browser is getting redirected to http://mysite.com/?p=welcome&x=1&y=2which fails.
但是， usingurldecode($url)不起作用，因为它没有解码&-> &，因此浏览器被重定向到http://mysite.com/?p=welcome&x=1&y=2失败。
I need it to decode so that it looks like: http://mysite.com/?p=welcome&x=1&y=2
我需要它来解码，使其看起来像： http://mysite.com/?p=welcome&x=1&y=2
How do I do that?
我怎么做？
回答by Esailija
Try with htmlspecialchars_decode
echo htmlspecialchars_decode('http://mysite.com/?p=welcome&x=1&y=2');
//"http://mysite.com/?p=welcome&x=1&y=2"
回答by CodeCaster
&isn't URL encoded (aka percent-encoding), but is an HTML entity. URL-encoded it would look like %26.
&不是 URL 编码（又名percent-encoding），而是一个 HTML 实体。URL 编码的它看起来像%26.
Use html_entity_decode().
回答by Matteo Tassinari
I'd try this:
我会试试这个：
$url = html_entity_decode($url);
header("Location: $url");
taken from http://php.net/manual/en/function.html-entity-decode.php
取自http://php.net/manual/en/function.html-entity-decode.php
I'd do so 'cause your $urlis not url-encoded but html-encoded, with html special characters replaced with the corresponding html entity.
我会这样做，因为你$url不是 url 编码的而是 html 编码的，用相应的 html 实体替换了 html 特殊字符。
回答by Matt
&isn't url-encoded. You need use htmlspecialchars_decode()http://php.net/manual/en/function.htmlspecialchars-decode.php
&不是 url 编码的。您需要使用htmlspecialchars_decode()http://php.net/manual/en/function.htmlspecialchars-decode.php
