Mod Rewrite for Code Igniter - .htaccess

I have a code igniter site that needs to accept incoming links in the format:
http://domain.tld/somename.html?id=IDREF
I need to create a rule for mod_rewrite that rewrites this URL to:
http://domain.tld/index.php/controller/somename/IDREF
I am having trouble writing the rule for the .htaccess file.
I thought this should work:
RewriteCond ${QUERY_STRING} ^(.*\.html\?id=.*)$
RewriteRule ^([^/]*)\.html\?id=(.*) /index.php/controller/$1/$2 [L]
But as I am a bit of a novice at mod_rewrite I can't get it to work.
Just to clarify I want the user to link to this ugly url and get sent to specific controller.

Try this:
RewriteCond ${QUERY_STRING} ^id=
RewriteRule ^(.*)\.html?id=(.*) index.php/controller/$1/$2 [L]
You might need to add a question mark after the second $2 if you get the original query string appended somehow after the rewrite

Related

rewrite rule to convert php querystring to html

Please help me in writing correct .htaccess code to get the wanted result.
I have the following pages:
www.mydomain.com/?exam=/hp-certification/
www.mydomain.com/?exam=/cisco-certification/
www.mydomain.com/?exam=/oracle-exam-prep/
www.mydomain.com/?exam=/faq/
www.mydomain.com/?exam=/support/
And there are many more pages but you can notice that the fixed part is: www.mydomain.com/?exam=
Instead of using query string links, I want the following links to work as above pages:
www.mydomain.com/hp-certification/
www.mydomain.com/cisco-certification/
www.mydomain.com/oracle-exam-prep/
www.mydomain.com/faq/
www.mydomain.com/support/
and so on.
your link should be like this www.mydomain.com/?exam=hp-certification/ and the rewrite rule would like this in .htaccess file.
RewriteEngine On
RewriteRule ^([^/.]+)$ /?exam=$1 [L]
You can do that by using the following rules in your .htaccess file:
RewriteEngine On
RewriteCond %{QUERY_STRING} exam=(.+) [NC]
RewriteRule ^(.*)$ http://www.example.com/%1? [R=301,NC,L]
So what does the above do?
First, it will take the query exam= as a condition, if this condition is met then it will grab any version of the variable using (.+).
It will then rewrite the URL using 301 redirection to show http://www.example.com/anything/. The use of %1 is to grab the variable from exam= and then we use ? to stop the original query string from appearing on the end of the newly rewritten URL.
Make sure you clear your cache before testing this.

Redirect when two strings are matched

Trying to make the url:
www.google.com/forum.php?fid=5
Redirect to:
www.google.com/new.php?fid=5
But also need it to keep everything else intact because for example the link can be:
www.google.com/forum.php?fid=5&sortby=asc
And need sortby portion to be there upon redirect.
What the redirect needs to do is look for forumdisplay.php and fid=6 and when both are found in the same url it redirects to blog.php and removes fid=6 but keeps any other parameters there.
I searched and found how to do it with one string but not two.
Also, what's the difference between redirect and rewrite?
This is related to MyBB forum software. I made a separate php file that uses forumdisplay but with a new name.
Using mod_rewrite you could use a condition to verify the id and grab what comes after if anything:
RewriteEngine On
RewriteCond %{REQUEST_URI} ^/forumdisplay.php
RewriteCond %{QUERY_STRING} ^fid=6(&.*|.*)
RewriteRule ^.*$ /blog.php?%1 [R=301,L]

htaccess rewriting dynamic urls

How can I rewrite this url
http://www.example.com/index.php?test=<some dynamic data>
to
http://www.example.com/<some dynamic data>
I have tried
RewriteEngine on
RewriteRule index.php?test=(\w+)?$ $1
although it doesn't work.
How can this be done? And is it still possible for example to do echo $_GET['test'] with the rewritten url(or anything with the query)?
If the incoming url in the browser is the dynamic one:
http://www.example.com/<some dynamic data>
and you're trying to rewrite it to this, for your code:
http://www.example.com/index.php?test=<some dynamic data>
then try this:
RewriteEngine on
RewriteCond %{REQUEST_URI} !index.php
RewriteRule ^(.*)$ index.php?test=$1 [NC,L]
The last line takes anything that comes in, and sends it to index.php with the test parameter. The RewriteCond is making sure it doesn't do this with index.php itself, or it would be an infinite loop.
If you're trying to go the other way, and have your code create dynamic urls for displaying on your site, then that's somewhere else in your website code, wherever you're creating your html. Once created, this rule will rewrite them back to index.php.

301 redirect from URL with query string to new domain with different query string

I am trying to figure out how to do a 301 redirect in my htaccess file to redirect some files to a new domain. Here's what I need to know how to do:
OLD URL: http://www.example.com/index.php?page=news&id=2366
NEW URL: http://www.example2.com/news.php?name=23546
The redirects don't have to be automatically created. I can hard-code the pages I need to redirect in the htaccess file, I just don't know the format to use as I've read that a "standard" 301 redirect won't work with query strings.
Basically this is what I want to do, but from my research so far it doesn't sound like it can be done this way.
redirect 301 /index.php?page=news&id=2366 http://www.example2.com/news.php?name=23546
You could use a rewrite rule with a query string match condition, such as:
RewriteEngine On
RewriteCond %{REQUEST_URI} ^/index.php$
RewriteCond %{QUERY_STRING} ^page=news&id=2366$
RewriteRule ^(.*)$ http://www.example2.com/news.php?name=23546 [R=301,L]
Checkout this blog page for more information on how this works.
I had the same problem, but still more complicated, because I needed to discard other parameters.
Like this: my-old-page.php?a=1&b=2&c=3
I need to use one of the strings and discard the others, but that solution only worked if I want to use the last parameter (c=3). If I want to use any other (a=1 or b=2) it runs to a 404. After much struggling and searching, I found an answer:
RewriteCond %{QUERY_STRING} ^.* ?b=2.* ?$ (without space after the *)
RewriteRule (.*) http://www.my-webpage.php/new-location-2? [R=301,L]
The solution is to add ".*?" before and after the parameter to use.
I don't know if this is the best solution, but it works.

.htaccess file using 2 different rewrite rules

I've got a .htaccess file that has got a rewrite rule in it as follows which works fine:
RewriteRule ^solicitorsin([^/]+)/all/([0-9]+)$ /search/searchresults.php?county=$1&page=$2 [L]
What I'm looking to do is to keep using this for if the page variable is 2 or higher, but if it's 1 I want to 301 redirect to a separate url (the same site) say http://www.domain.com/solicitorsinCOUNTY/
The problem is that if I try doing this using a 301 redirect or a rewrite rule it still performs the above rewrite rule as well so I end up with http://www.domain.com/solicitorsinCOUNTY/?county=COUNTY&page=1
I haven't done much with .htaccess before so I'm not even sure if this is possible, can anyone help please? It would be much appreciated.
If you are using a rewrite rule, then put the rule for page=1 above the other rule and make sure you have the [L] flag.
Alternatively, you can use RewriteCond to prevent the rule from being run on specific URLS like this:
RewriteCond %{REQUEST_URI} !^solicitorsin([^/]+)/all/1$
RewriteRule ^solicitorsin([^/]+)/all/([0-9]+)$ /search/searchresults.php?county=$1&page=$2 [L]

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