GET parameters not being correctly passed by RewriteRule

问题

I wrote a simple regex for my application's API:

^api/([^/]+)/([^/.]+)\.([^$/?=&]+)(?:\?(.*))?$

this becomes

/app/api/$1.php?action=$2&format=$3&$4

In the refiddle the regex works perfectly, constructing correct URLs, but the PHP script is not reporting any GET parameters apart from the action and format parameters. The .htaccess which is placed in / is

AddType image/svg+xml svg
RewriteEngine on
#If the URL is just /api, give them the docs
RewriteRule ^api/?$ /app/api/apidoc.php [L]
#Example api/user/update.json?x=fff&y=gggg
#http://refiddle.com/2ss
RewriteRule ^api/([^/]+)/([^/.]+)\.([^$/?=&]+)(\?(.*))?$ /app/api/$1.php?action=$2&format=$3&$4 [L]
#Example api/user/update?x=000&y=ffe
RewriteRule ^api/([^/]+)/([^/.&=]+)(\?((.*)*))?$ /app/api/$1.php?action=$2&$3 [L]

Thanks in advance.

回答1:

Don't try to capture additional query string parameters. Instead, append them with the QSA flag.

RewriteRule ^api/([^/]+)/([^/.]+)\.([^$/?=&]+) /app/api/$1.php?action=$2&format=$3 [L,QSA]

Adjust your RewriteRule accordingly.

来源：https://stackoverflow.com/questions/11760116/get-parameters-not-being-correctly-passed-by-rewriterule