301使用codeIgniter重定向网站的旧页面

Question

I have just now upgraded one of my static website to a codeIgniter enabled website. I need to redirect the exact domain names of the old website to the new ones to avoid the 404 error.

• Old pages > http://example.com/pagename.php
• New pages > http://example.com/index.php/home/category_images/9(cat_id)

I do not a very high no. of pages so hard coding all the pages directly will not be a problem. I have tried :

RewriteEngine On
RewriteBase /
RewriteRule ^http://www.example.com/pagename.php$ http://example.com/index.php/home/category_images/9 [L,R=301]

Not working, I have no idea why. mod_rewrite is enable on my apache server.

Also, just for the confirmation please also tell me in which folder I should put this file, I am confused between root dir or Application folder.

Thank you.

Version 2 : Now after suggestion from Mr. Michael, I tried to implement it using the redirect function like this :

Default Controller function : home.php

function __construct()
{
    // Call the Model constructor
    parent::__construct();
    $this->load->model('common_model');
    $this->handle_redirects();
}

function handle_redirects () 
{
    $redirects = Array(
    'gorgeous-girls.php' => 'home/category_images/9'
    );
    $uri = implode('/', $this->uri->segments);
    foreach ($redirects as $from => $to)
    {
        $from = str_replace(':any', '.+', str_replace(':num', '[0-9]+', $from));
        if (preg_match("#^{$from}$#i", $uri))
        {
        if (strpos($to, '$') !== false and strpos($from, '(') !== false)
            $to = preg_replace("#^{$from}$#i", $to, $uri);
        redirect($to , 'location', 301);
        }
    }
}

And my .htaccess looks like :

RewriteEngine On
RewriteBase /
RewriteCond $1 !^(index.php|resources|robots.txt)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /index.php?/$1 [L]

PS : I have removed index.php from my domain name structure. It looks like : www.example.com/controller/function/uri/uri

Now I am not getting an error page from my host, but I am getting an error page from the CodeIgniter.

Please help.

Answer 1

You don't use the whole domain name in the match portion of the rewrite rule. Try this:

RewriteRule ^pagename.php$ /index.php/home/category_images/9 [L,R=301]

Of course you will likely need other rules for the server to understand that index.php is the file that is to be called, not something at /image.php/home/category_images/9

So perhaps a second rule like

RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^index.php/(.*) /index.php?q=$1 [L]

I just noticed that in your updated answer you are trying to redirect from www.example.com to example.com. If you do want to force one domain, you should probably add another rule in your .htaccess before either of the other rules mentioned like this:

RewriteCond %{HTTP_HOST} ^www.example.com$
Rewrite Rule ^(.*)$ http://example.com/$1 [L,R=301]