php header location - french characters

Question

When the $urlGoBack variable contains a french accented character like "é" the following doesn't work properly, even tho I previously ensured it's being passed on to header like it should, using the mb_convert_encoding() function.

header("Location: " . $urlGoBack);

The URL I'm being taken to has "é" changed to %E9, which is its URL equivalent I guess.

HTML charset is iso-8859-1, whereas mb_detect_encoding($urlGoBack) returns UTF-8.

On the other hand, if I try converting it with

$urlGoBack = iconv('UTF-8', 'ISO-8859-1//TRANSLIT', $urlGoBack);

or

$urlGoBack = mb_convert_encoding($urlGoBack, "ISO-8859-1", "UTF-8"); 

then mb_detect_encoding($urlGoBack) returns ASCII and "é" is gone, and the URL gets wrong. Surprisingly tho, it's exactly the same result when I try the seemingly trivial

$urlGoBack = mb_convert_encoding($urlGoBack , "UTF-8", "UTF-8");

Any suggestions? Thanks.

Answer 1

I think you need to encode url like this

header("Location: " . urldecode($urlGoBack));

Refer php.net

Answer 2

您需要使用urlencode（$ urlGoBack），如下所示：

header("Location: " . urlencode($urlGoBack));