I'm trying to convert a query string;
http://atwd/books/course?course_id=CC100&format=XML&submit=Submit
Into a segment URI;
http://atwd/books/course/CC100/XML
I'm working in CodeIgniter.
I was looking at a stackoverflow answer that said to check CodeIgniter's URL segment guide, but I don't think there's any information on how to convert a query string into a segment URI. There is, however a way to convert a segment URI into a query string, which is bringing up a load of results from Google too.
Following another stackoverflow answer, I tried this in my .htaccess file but nothing seemed to work
RewriteCond %{QUERY_STRING} ^course_id\=([^&]+)\&format\=([^&]+)$
RewriteRule ^$ /course/%1/format/%2 [R,L]
In my entire .htaccess file I have this;
<IfModule mod_rewrite.c>
RewriteEngine on
#Source: http://codeigniter.com/user_guide/general/urls.html
#Removal of index.php
RewriteCond $1 !^(index\.php|images|robots\.txt)
RewriteRule ^(.*)$ /index.php?route/$1 [L]
#Source: https://stackoverflow.com/questions/3420204/htaccess-get-url-to-uri-segments
#Format Course function requests
RewriteBase /
RewriteCond %{QUERY_STRING} ^course_id\=([^&]+)\&format\=([^&]+)$
RewriteRule ^$ /course/%1/format/%2 [R,L]
</IfModule>
This is in my root directory of Codeigniter screenshot
My code in the .htaccess file isn't working, I refresh the page and nothing happens. The code to hide the index.php is working though. Does anyone know why?
The notion of "converting URLs" from one thing to another is completely ambiguous, see the top part of this answer for an explanation of what happens to URLs when redirecting or rewriting: https://stackoverflow.com/a/11711948/851273
There's 2 things that happen, and I'm going to take a wild stab and guess that you want the 2nd thing, since you're complaining that refreshing the page doesn't do anything.
When you type http://atwd/books/course?course_id=CC100&format=XML&submit=Submit into your browser, this is the request URI that gets sent through mod_rewrite: /books/course. In your rule, you are matching against a blank URI: RewriteRule ^$ /course/%1/format/%2 [R,L]. That's the first reason your rule doesn't work. The second reason why it doesn't work is because above that, everything except images and index.php and robots.txt is being routed through index.php. So even if you were matching against the right URI, it gets routed before your rule even gets to do anything.
You need to correct the pattern in your rule to match the URI that you expect to redirect, and you need to place this rule before the routing rule that you have. So everything should look roughly like this:
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteBase /
RewriteCond %{QUERY_STRING} ^course_id\=([^&]+)\&format\=([^&]+)$
RewriteRule ^/?books/course$ /course/%1/format/%2 [R,L]
#Source: http://codeigniter.com/user_guide/general/urls.html
#Removal of index.php
RewriteCond $1 !^(index\.php|images|robots\.txt)
RewriteRule ^(.*)$ /index.php?route/$1 [L]
</IfModule>
You'll need to tweak the paths to make sure they match what you are actually looking for.
To both redirect the browser and internally rewrite back to your original URL, you need to do something different.
First, you need to make sure all of your links look like this: /course/CC100/format/XML. Change your CMS or static HTML so all the links show up that way.
Then, you need to change the rules around (all before your codeigniter routing rule) to be something liek this:
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteBase /
# redirect browser to a URI without the query string
RewriteCond %{THE_REQUEST} ^(GET|HEAD)\ /books/course/?\?course_id=([^&]+)&format=([^&]+)
RewriteRule ^/?books/course$ /course/%2/format/%3? [R,L]
# internally rewrite query string-less request back to one with query strings
RewriteRule ^/?course/([^/]+)/format/([^/]+)$ /books/course?course_id=$1&format=$2&submit=Submit [L]
#Source: http://codeigniter.com/user_guide/general/urls.html
#Removal of index.php
RewriteCond $1 !^(index\.php|images|robots\.txt)
RewriteRule ^(.*)$ /index.php?route/$1 [L]
</IfModule>
I'm not going to address the misunderstanding already addressed pretty well in the other answer and comments, and I can't speak for CodeIgniter specifically, but having given their URL routing docs a quick skim, it seems pretty similar to most web frameworks:
You probably just want to direct all traffic (that doesn't match physical files) to the frontend web controller (index.php) and handle the URL management in CodeIgniter's routing, not a htaccess file.
To do that, your htaccess could be as simple as:
<IfModule mod_rewrite.c>
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule .* index.php [QSA,L]
</IfModule>
This, as I said, will redirect any traffic that doesn't match an physical file such as robots.txt or an image to your index.php.
Then, using the routing as described in the docs (http://ellislab.com/codeigniter/user-guide/general/routing.html) you can take in parameters and pass them to your controllers as you see fit, there is no need to 'convert' or 'map' anything, your URL's don't need to resolve to /?yada=yada internally, based on your routing rules CodeIgniter can work it out.
You'll need wildcard routes such as this from the docs:
$route['product/:id'] = "catalog/product_lookup";
A rough example of what yours might end up looking like would be something like:
$route['course/:id/format/:format'] = "course/something_or_other_action";
If I'm understanding you correctly, you might be over-thinking it. I have something similar in my own code.
I have a controller named Source. In that controller, I have the following method:
public function edit($source_id, $year)
{
# Code relevant to this method here
}
This produces: http://localhost/source/edit/12/2013, where 12 refers to $source_id and 2013 refers to $year. Each parameter that you add is automatically translated into its own URI segment. It required no .htaccess trickery or custom routes either.
Related
Well I'm havin trouble creating .htaccess, anyway I have categories in my menu for example test1,test2,test3 that are the names of a folders, and what I'm trying to do is to point the second parameter of the url to index.php, for example http://myapp/test1 I want to be able from the index.php to have $_GET['cat'] = test1 and so on..
Here's what I've tried so far and didn't work:
Options +FollowSymlinks
RewriteEngine on
RewriteRule ^(.*)/$ index.php?cat=$1 [NC,L]
Any help with this? Much appreciated.
Try removing the trailer / character from your rewrite rule. ^(.*)/$ matches any URL that ends in a / like http://myapp/test/. You are probably looking for ^(.*)$ or to strip any leading slash ^/(.*)$. Note though that if index.php is accessed directly via f.ex. http://myapp/index.php this would also match and rewrite to http://myapp/index.php?cat=index.php and any images wouldn't also be directly accesible. So you might want to add some RewriteCond that first checks if the requested URL is an existing file with RewriteCond %{REQUEST_FILENAME} !-f before the RedirectRule to rewrite the URL.
I have re-written my URL from website.com?id=1 to website.com/1 and I'm getting 404 errors when trying to access the page and cannot think of a solution to this. I'm currently developing a link shortener. This is required so users will be able to access their shorted links.
This is my current .htaccessfile
RewriteEngine On
RewriteCond %{THE_REQUEST} ^(GET|HEAD)\ /(index\.php)?\?id=([0-9]+)([^\ ]*)
RewriteRule ^ /%3?%4 [L,R=301]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([0-9]+)/?$ /?id=$1 [L,QSA]
I cannot figure out whether this has something to do with the .htaccess file or if I need to add something else to my php code.
Would someone have some sort of idea? Thanks.
You need to explicitly rewrite back to index.php in your second rule. By the time rewrite rules are processed the DirectoryIndex directive has already been processed (or may never be processed at all - it depends a little on your virtual host configuration and in what scope the DirectoryIndex directive was declared).
The end result of this is that you need to explicitly rewrite the request to the script that you want to handle the request, you can't just rewrite it to the root of a directory. Try changing your second rewrite rule to:
RewriteRule ^([0-9]+)/?$ /index.php?id=$1 [L,QSA]
On a personal note, it's interesting to see someone else use the %{THE_REQUEST} approach to this problem, this is an idea that I myself only recently came up with, although presumably I am not the first to do so. For the benefit of future visitors, here is a related post that explains why this requirement would come about and the thinking behind it.
I think you have written wrong rewrite rules.
They must be something like this:
for example.com/website.php?id=x..
RewriteEngine On
RewriteCond %{QUERY_STRING} ^id=([^/]+)$
RewriteRule ^website\.php$ %1/ [L]
as discussed here: https://stackoverflow.com/a/4951918/2274209
Hope this will solve your query.
I know that there are many questions about this subject, but the questions, and even more the answers are kind of confusing me.
What I want to do:
I want to have an internet page, wich, depending on the URL, shows different content. However, in the backend, all pages are handled by one central PHP page.
In other words:
www.example.com/
www.example.com/AboutUs
www.example.com/Contact
should all be handled by a single .php script, but in such a way that in the browser of the users the URLS are kept intact.
Now, is this done with .htaccess rewriting or not? And how?
.htaccess using Rewrite would be the best approach for this:
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule ^(.*)$ /index.php?url=$1 [QSA,L]
</IfModule>
In your index.php you can use the value of $_GET['uri'] or $_SERVER['REQUEST_URI'] to determine which functionality is being requested.
If you only want your controller script to handle requests for files and directories that don't already exist, you can do:
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ /index.php?url=$1 [QSA,L]
</IfModule>
Yes, you can achieve this by adding mod_rewrite rules to your .htaccess file. Here is an article with more detailed information: http://net.tutsplus.com/tutorials/other/a-deeper-look-at-mod_rewrite-for-apache/.
It may not help your confusion, but it will at least teach you the proper syntax. Basically, mod_rewrite takes the "clean" URL given in the browser, decodes it using a regular expression, then discretely passes the matches from the regular expression as GET variables.
In other words: mod_rewrite takes "example.com/AboutUs", reads the URL, and serves up whatever would be on the page "example.com/index.php?page=AboutUs" without showing users the actual GET-variable-ridden URL.
I'm lost here. I'm using this script to give users the opportunity to enter their username lijke this:domain/username
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([^/]+)/?$ userpage.php?user=$1 [NC,L]
</IfModule>
This works fine. However, every user has pages I must link to: Video, Music, Images etc...
So I need something like:
domain/username/video
In php code it must be something like:
user.php?user=test&page=video
And one other question: What is the preferable way to link in this situation?
userpage.php?user=test&page=video
or
/test/video
And finally: Is it possible to deny the possibility to enter the url:
domain/userpage.php?user=test&page=video? Instead just always show: domain/test/video
Thanks in advance
I'm not 100% sure what you're asking? Do you need to change the rewrite rule to match the URL site.com/moonwalker/videos? You could try this:
RewriteRule ^([^/]+)/(images|videos|music)/?$ userpage.php?user=$1&page=$2 [NC,L]
Update
Just a quick note on the domain/member/videos URL structure. That could end up causing you problems in the future. For instance what if you decide to have a single page that shows all member videos? You'd probably want to URL to look something like site.com/members/videos. That's a problem, because the rewrite rule will also match that, but "members" isn't a member username.
I would probably structure my member page URLs like site.com/user/moonwalker/videos so it doesn't clash with future rewrite rules. You would change the above rewrite rule to this:
RewriteRule ^user/([^/]+)/(images|videos|music)/?$ userpage.php?user=$1&page=$2 [NC,L]
Then later on you can add a rewrite rule like:
RewriteRule ^members/(images|videos|music)/?$ allusers.php?page=$1 [NC,L]
To show all member videos.
Yes, it is possible by looking at the request line:
RewriteCond %{THE_REQUEST} ^[A-Z]+\ /userpage\.php[?\ ]
RewriteRule ^userpage\.php$ - [F]
This is necessary as the URL path could already be rewritten by another rule and thus using just RewriteRule would match those already rewritten requests too.
I'm writing a website that allows people to asses a web page's readability (Flesch-Kincaid Reading Ease, thank kind of thing).
Ideally I'd like the user to be able merely to preceed the target URL with mine (like many mirror sites do), and hey presto they can see the results.
I'm guessing it's got to be done with mod_rewrite, but I'm not sure how to write it, especially given that URLs may contain so much potential junk.
How would I say:
if request is mysite.com/anything-at-all ).
redirect to mysite.com/?site=anything-at-all
Except in cases where the request is for:
just for mysite.com/
The request is for mysite.com/ajaxresponse.php?target=something
Where the request is for about.php or loading.gif
Sadly everything that I have tried so far ends up in an redirect loop...
Many thanks,
Jack
Edit your .htaccess to have:
Options +FollowSymlinks
RewriteEngine on
RewriteRule ^(.+)$ ?site=$1 [NC]
The + in the regex will take care of the index page being left as is. Edit otherwise as you deem necessary (make it a 302 permanent redirect, etc...)
For excluding the specific pages you should add a line:
Options +FollowSymlinks
RewriteEngine on
RewriteRule ^(ajax\.php|whatever\.gif) - [L]
RewriteRule ^(.+)$ ?site=$1 [NC]
Try this rule:
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{QUERY_STRING} !(^|&)site=[^&]
RewriteRule .+ /?site=$0 [QSA]
The first condition is to exclude requests to existing files and the second is to avoid a redirect is there already is a site URL argument.