由于URL重写，PHP $ _GET变量为空

Question

I have rewritten a URL with .htaccess so that it looks prettier. But when I add a query string to this URL, the keys and are not visible from PHP.

In my .htaccess file, I tried several things to fix the problem, but nothing worked.

RewriteEngine On
[some code]
RewriteRule ^([a-zA-Z0-9_-]+)/?$ ?site=$1

I have tried this rewriting, to see if it works:

RewriteRule ^search?q=g ?site=search&q=g

But if I print_r($_GET) in PHP, I will just get Array ( [site] => search ) Try it on http://kwtsports.bplaced.de/search?q=g .

I have a search field that redirects to /search?q=blablaSearchQuery , but as I said, $_GET['q'] is empty.

This also doesn't work:

RewriteRule ^search?q=([a-zA-Z0-9_-]+)/?$ ?site=search&q=$1

Does anyone know why this happens?

Answer 1

Add [QSA] to the end of your RewriteRule . This appends the old query string to the result.

See the docs for more information.

Answer 2

Does anyone know, why this happens?

Yes. You cannot test the query string in the rewrite rule, so this part of your rule will never work: RewriteRule ^search?q=g .

If you want to test a query string, you have to test it in the rewrite cond.

For example, for your RewriteRule ^search?q=g?site=search&q=g example, you would have to do something like this:

RewriteCond %{QUERY_STRING} ^q=([^&]+)
RewriteRule ^search/?$ site=search&q=%1 [L]

In this particular case, since you are not wanting to change the q value, we don't really need to test it, and you could simply pass it through with the QSA option after adding site=search :

RewriteRule ^search/?$ site=search [L,QSA]