问题
I am trying to rewrite links on my site.
Possible links before rewrite and what I want to see after rewrite:/index.pl?mode=users&action=add - /users/add//index.pl?mode=streets&action=edit&id=7 - /streets/edit/7/index.pl?mode=users&action=info&id=7 - /users/info/7
etc
.htaccess content:
RewriteEngine On
RewriteCond %{REQUEST_URI} !\.(jpe?g|gif|bmp|png|tiff|css|js)$ [NC]
RewriteRule ^([A-Za-z0-9-]+)/((edit|delete|info))/([0-9]+)$ index.pl?mode=$1&action=$2&id=$3 [L]
RewriteRule ^([A-Za-z0-9-]+)/((add))/?$ index.pl?mode=$1&action=$2 [L]
RewriteRule ^([A-Za-z0-9-]+)/?$ index.pl?mode=$1 [L]
/users/add/ or /street/add/ are working properly, but...
Problems:/users/edit/xx - I can't accept ID in perl script. Why? /users/info/xx - I can't even get to info section /?mode=users&action=info&id=7 page (it have to show blank table with wrong ID
Btw... My site has 'switch' structure. I mean if mode is users, then it load "users.pl", if mode=streets loading "streets.pl", etc. About 2nd problem - sure I have info section at users.pl! And link /?mode=users&action=info&id=7 work perfect.
p.s.: added php-tag because it is not 'perl' problem , but php is equal to perl, so php-followers can help me too
p.p.s.: sry for my not very good english.
回答1:
You have too many parentheses, which makes your backreferences off-by-one:
RewriteRule ^([A-Za-z0-9-]+)/(edit|delete|info)/([0-9]+)$ index.pl?mode=$1&action=$2&id=$3 [L]
RewriteRule ^([A-Za-z0-9-]+)/(add)/?$ index.pl?mode=$1&action=$2 [L]
Those two rules had too many parentheses around the ((edit|delete|info)) and ((add)) (though the "add" isn't affected because $2 correctly backreferences it).
来源：https://stackoverflow.com/questions/21103974/mod-rewrite-how-to-rewrite-links-correctly