redirect through .htaccess file - php

I have made one file say a.php. Now I want some thing like if one tries to open a.php then He should ne redirected to another page of same directory of site.
I want it throght .htaccess file.
I have written this code in my .htaccess file
RewriteEngine On
# This allows you to redirect index.html to a specific subfolder
Redirect /b.php /a.php
both pages are stored in same directory..

You could try
RewriteEngine On
RewriteRule /a\.php /otherfile.php [R=301,L]
Change the filenames were necessary.
If you could be more specific as to what you wish to achieve,perhaps I can supply you with a better solution.
Question that might help:
Is it only for the file a.php, or there are other request that will be handled the same way as this pattern?
Hope it helps!

Please refere to the link below. I think so it will help you out.
How do I redirect my site using a .htaccess file?
Thanks

Or, you can use this if your script has a request string.
Like you want to stay on the same page, but not to show a request string.
(in case you want to post or get some data through scripts)
RewriteEngine on
RewriteRule ^/path/to/a/([0-9]+) /path/to/a.php?foot=$1 [PT]
Also, you should consult with the link Codemaster Gabriel and Arvind Sridharan gave you.

you can use header function in order to redirect..
try this
inside a.php
type:-
<?php
header ('location: b.php'); //lets say b.php is the file you want to redirect
?>
it will work..
and it is recommended to use this instead of .htaccess due to security reason of apache

Related

Redirect direct access to files in subfolder to script

I have a subfolder that holds user uploaded files. I want to redirect all direct file requests to this folder to another .php script...so i can check if the user is logged in before i send/show the file to him.
For example:
/mainsite/uploads/user/2324/file.pdf
needs to be forwarded to
/mainsite/uploads/permissions.php
But i need inside the permissions.php to be able to do:
$url = $_SERVER['REQUEST_URI'];
and see what was the initial request...in order to readfile() the file after all the 'checking'.
I've tried this:
RewriteEngine On
RewriteRule ^/uploads/user/?$ /uploads/permissions.php [R=301,L]
but this is just a simple forwarding...i got no idea what file or folder the user requested.
I know i can do this by creating an individual htaccess file inside every folder that is created under 'user/{userid}' but i wanted a simpler function. I dont want to have 10000 htaccess files, if i can do this with just one.
Thanks
try with this syntax: (i added the R=301 part, which wasn't necessary in my version, so it is not fully tested, works without the R option)
RewriteRule "^/uploads/user/(.+)$" "/uploads/permissions.php?file=$1" [R=301,QSA,L]
You can the get your file var in the $_GET array in permissions.php. However, i wouldn't recommend to use directly this value because it can be unsecure. The best way is to only allow fixed values, with a switch for example, having filtered the var as a string before.

Generate URL Alias?? in PHP

I just saw this somewhere, and I'm interested on it, and can't seemed to find it anywhere or I just used the wrong words to search for.
Well I saw this link,
http://splur.gy/r/QqVYf/r/2tgNklHgmVK
and when I clicked it, I got redirected to other page which called
https://www.facebook.com/xxx.xxx?sk=app_xxxx
Anyone knows how this thing was made? or just a little hint to start off?
A help would be nice. :)
These are done with RewriteRule, a simple Google search willgive you mroe details.
In short, the URL will be broken down sorta like this: (Line 1, URL part, Line 2, PHP relative.
http://splur.gy
http://splur.gy/index.php
r
$_GET['var_1']
QqVYf
$_GET['var_2']
r
$_GET['var_3']
2tgNklHgmVK
$_GET['var_4']
The RewriteMod will take the URL as setup in the above format, and pass the varialbes to a script. It is another way of posting variables in the URL.
As you see above: stackoverflow.com/posts/15182831, does not actually have a file named posts/15182831, it is simple used as a variable, passed to a script which queries that database, and spits out results based on what the script says.
You will need to have a server that will allow you to rewrite requests so you can redirect all requests to a single script. If you are running Apache, you would create an .htaccess file with something like this in it:
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^r$ /redirect.php [L,QSA]
RewriteRule ^r/(.*) /redirect.php?__q=/$1 [L,QSA]
</IfModule>
Then if you go to http://yourdomain.com/r/234243/adsfsd, the request will be sent to the script /redirect.php and '234243/adsfsd' will be passed as the GET paramiter 'q'.
Then you would create a file called redirect.php that would process the request and then redirect the user. It might look somthing like this:
<?php
$redirection = process_to_determine_location_from_query( $_GET['q'] );
header( 'Location: {$redirection}' );
?>
It's called a redirect. You can do it in PHP with this code:
<?php
header('http://example.com');
Another thing that might have happened is that the link you saw was not the actual link you follow when you click. It's as simple as doing this:
example.com
Anyone could do that.
http://www.google.com/
It has nothing to do with PHP.

.htaccess mod_rewrite redirect issue

I have currently hit a bit of an issue with redirecting users with .htaccess and was wondering if anyone could help me.
1. Background:
I currently have a rather long domain name for the sake of this question lets refer to it as mylongdomainname.com now on this domain I have a subdomain that I use to host files, pictures etc to show friends or share with people this is files.mylongdomainname.com
now obviously the URL can get quite long as I have different directories and files. so to help reduce a bit of space I purchased another short domain, lets refer to this as small.me now what I want to do is use .htaccess and a simple PHP file to redirect small.me to files.mylongdomainname.com and pass on a file reference.
Example:
small.me/pictures/example.jpg should redirect to files.mylongdomainname.com/pictures/example.jpg
2. The problem
Basically I am unsure on the exact rewrite rule I would need to acomplish this. obviously I need a rule that will allow anything after small.me/ to be sent with the GET method to the index file which would then redirect the user accordingly. So that means that the rewrite rule will have to allow all letters, numbers and valid file name symbols to be used. I'm sure it's simple but after looking at a few tutorials and mod_rewrite help sites I still have no idea how to accomplish this.
3. The Code
.htaccess
RewriteEngine on
RewriteRule ^$ index.php?file_location=$1 [L]
obviously wrong
index.php
<?php
//Get the requested files location.
$file_location = $_GET['file_location'];
//Redirect the user to the file.
header('refresh:2; url=http://files.mylongdomainname.com/' . $file_location);
?>
4. Notes
I am aware I could just use a URL shortener, but because I am awkward I would rather it just went through my own domain, so please don't comment or answer telling me to use a shortener or to use a service like dropbox.
So can anybody help me by providing the right rule? Any help is much appreciated.
In .htaccess you can simply use:
RewriteRule ^(.*)$ http://small.me/?$1 [L]
No need for the PHP file if that's all you're trying to do.
Assuming you want this:
Picture to be shared: http://files.mylongdomainname.com/pictures/me/troll.jpg
Desired URL: http://small.me/pictures/me/troll.jpg
Remove the PHP file, just Place this in small.me's htaccess:
RewriteRule ^\/?(.*)$ http://files.mylongdomainname.com/$1 [NC,L]
The following in your .htaccess file should be all you need (no PHP file needed):
RewriteRule ^(.*) http://files.mylongdomainname.com/$1 [RL]
For more information and examples see the mod_rewrite documentation

PHP redirect when directly approaching?

I'm working on this PHP page wich includes different pages like header.php .
What I want is when you go to header.php, it redirects you to the homepage. I tried using header but when I include it, it keeps redirecting me.
I think it's possible with an if statement with $_SERVER, but I don't know how.
Anyone can help me out? Thanks in advance!
The best way to do this is to create a constant on your main landing page, so let say index.php is one of your main landing pages.
You would create a constant within there, and then do a check in all your sub templates that should only ever be included by a main page.
Example:
<?php
define("IN_VIEW",true);
require_once "header.php";
And then within header.php you can just to make sure that IN_VIEW is defined
<?php
if(!defined("IN_VIEW"))
{
die("Direct Access Forbidden");
}
//Header Here
If its not defined, then obviously the page has been loaded directly and not from index.php.
And then for every other "in-direct" page that should be secured you just place the three lines at the head of the file, and make sure the constant has been defined in your main pages (index,login,logout) etc.
if($_SERVER["PHP_SELF"] == "header.php") {
header("Location: index.php");
}
Although this isn't best practice. You shouldn't allow users to be able to access the PHP files in the first place. The simplest method of disallowing users access to this type of file is by moving the file above the document root, meaning it is impossible to request the header.php file via HTTP.
Another solution is to simply redirect everything to index.php so that direct access to any other script is prevented. On apache for example you can do this using .htaccess as follows:
RewriteEngine On
# redirect everything to index.php except exceptions
RewriteCond %{REQUEST_URI} !/robots\.txt$
RewriteCond %{REQUEST_URI} !/favicon\.ico$
RewriteCond %{REQUEST_URI} !/static/
RewriteRule ^(.*)$ index.php [L]
You can specify some exceptions such as your robots.txt file, and images directory.

what is the best way to do that name?get=

ok assume i have php page
has this name name.php?get= and has get varible named get
ok
how i can make it appear like that name?get=
If you are using apache, mod_rewrite is one way to go. There is a whole bunch of mod_rewrite tricks here.
I'd seriously reconsider before using (or overusing) mod_rewrite.
In almost all of my projects I use a simple mod rewrite in the .htaccess:
RewriteEngine On
RewriteCond %{SCRIPT_FILENAME} !-d
RewriteCond %{SCRIPT_FILENAME} !-f
RewriteRule ^.*$ ./
AddHandler php5-script .php
This tells the server to forward all pages to / (index.php) unless a file otherwise exists.
In the root directory I have a folder called "views" with all of the pages that I use. E.g. the file used for /home would actually be /views/home.php. However, in the index.php I have a script that parses the user's url, checks for the file, and includes that.
$page = substr($_SERVER['REQUEST_URI'], 1);
if(!$page) :
header("Location: /home");
if(file_exists("views/$page.php")) :
include "views/$page.php";
else :
include "views/$page.php";
endif;
This creates a variable called $page that stores the value of everything in the URL after the domain name. I use a substr() function on the Request URI to get rid of the trailing forward slash (/) on the URL.
If the variable is empty, for example if the user is simply at http://example.com or http://example.com/ then it forwards them to /home, where the script then checks for the home.php file inside of the views folder. If that file exists, it includes it, and displays it to the user.
Else, the script will simply include the 404 page telling the user that the file doesn't exist.
Hopefully this helps you, and if you need any further explanation I'd be happy to help!
I think you're wanting to re-write the URL client-side, which would include mod_rewrite.
In the route of your website, create a file called .htaccess and place the following code in it:
RewriteEngine on
RewriteRule ^name?get=(.*) /name.php?get=$1
Now when you type http://www.example.com/name?get=something, it will actually map to http://www.example.com/name.php?get=something transparently for you.
As far as i could understand your question, you can not strip the file extension because otherwise it will not run. In other words, you can not change:
name.php?get=
into
name?get=
But if you mean to create links with query string values that you can put them in hyperlinks in this way:
Click here !!
If you're looking to create links using a variable '$get', then you can create the link like this:
<a href="name.php?get=$get>Link</a>
Or if you want to get the value of the query string variable, you can use this:
$get = $_GET['get']

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