codeigniter redirect non-www to www

Question

i saw .htaccess Redirect non-WWW to WWW preserving URI string but it doesn't work for me

if i go to mysite.com/site/something i get redirected to mysite.com/something

RewriteCond %{HTTP_HOST} !^www\.mysite\.com$
RewriteRule (.*) http://www.mysite.com/$1 [R=301,L]

also tried:

RewriteCond %{HTTP_HOST} .
RewriteCond %{HTTP_HOST} !^www.mysite.com [NC]
RewriteRule (.*) http://www.mysite.com/$1 [R=301,L]

edit:

here's the code im using, based on Alfonso Rubalcava's answer:

if (substr($_SERVER['SERVER_NAME'], 0, 3) != 'www')
{

    if ($_SERVER['REQUEST_URI'] == '//site/')
    {
        header('HTTP/1.1 301 Moved Permanently');
        header('Location: http://www.site.com/site/');
        exit;
    }

    header('HTTP/1.1 301 Moved Permanently');
    header('Location: http://www.site.com' . $_SERVER['REQUEST_URI']);
    exit;

}

This `//site/` looks like a malformed link. You may wish to correct in the code (in a view?) To avoid the search engines will index it as such. — Alfonso Rubalcava, Oct 07 '11 at 03:55
oh..the link is not malformed, must be something with CI routes or htaccess to remove the index.php..the behavior is the same when i type the address on the browser — braindamage, Oct 07 '11 at 18:26
better use`header("Location: http://www.".$_SERVER['SERVER_NAME'].$_SERVER['REQUEST_URI']);` for making it dynamic — John Christian De Chavez, Dec 15 '15 at 09:04

score 6 · Accepted Answer · answered Oct 05 '11 at 19:52

6

Try, in index.php, at the beginning:

if(substr($_SERVER['SERVER_NAME'],0,3)=="www"){
    header("HTTP/1.1 301 Moved Permanently");
    header("Location: http://yourdomain.tdl/".$_SERVER['REQUEST_URI']);
}else{
    //the current contents of your file
}

EDIT I read your question wrong, the answer is:

if(substr($_SERVER['SERVER_NAME'],0,3)!="www"){
    header("HTTP/1.1 301 Moved Permanently");
    header("Location: http://www.yourdomain.tdl/".$_SERVER['REQUEST_URI']);
}else{
    //the current contents of your file
}

answered Oct 05 '11 at 19:52

Alfonso Rubalcava

2,237
17
26

1

can't i do this only using htaccess? – braindamage Oct 05 '11 at 21:07
Yes, you can. This is just one way to do it with something more familiar and less problematic... and that will not require adjustment every time you migrate from server. – Alfonso Rubalcava Oct 05 '11 at 21:24
thanks, it works..btw i removed the "else" statement and used a "exit;" at the end of the if :] – braindamage Oct 06 '11 at 16:45
oh..only problem is if i go to "mysite.com/site" i get redirected to "mysite.com//site" and i get a 404 error.. – braindamage Oct 06 '11 at 16:51
Remove the `/` from `yourdomain.tdl/".$_SERVER[` I'm glad it was useful. – Alfonso Rubalcava Oct 06 '11 at 16:53
hm i already did that, this only happens when i got to the /site – braindamage Oct 06 '11 at 16:56
i solved by redirecting to the full path when it hits: if ($_SERVER['REQUEST_URI'] == '//site/') – braindamage Oct 06 '11 at 17:02
Hi, I try the solution but got `The page isn't redirecting properly`. What can be the cause of this? – Permana Jul 08 '13 at 07:02

score 4 · Answer 2 · answered Jul 26 '16 at 16:45

include these two lines in the .htaccess file of codeigniter to redirect non-www url to www

RewriteCond %{HTTP_HOST} !^www\.(.*)
RewriteRule (.*) http://www.%{HTTP_HOST}/$1 [R=301,L]

i.e the full .htaccess file will be something like that->

<IfModule mod_rewrite.c>
 RewriteEngine On
 RewriteCond %{HTTP_HOST} !^www\.(.*)
 RewriteRule (.*) http://www.%{HTTP_HOST}/$1 [R=301,L]
 RewriteCond %{REQUEST_FILENAME} !-f
 RewriteCond %{REQUEST_FILENAME} !-d
 RewriteRule ^(.*)$ index.php/$1 [L]
</IfModule>

score 1 · Answer 3 · answered Aug 19 '17 at 15:04

1

Use this code

#Redirect to www
RewriteEngine On
RewriteCond %{HTTP_HOST} ^[^.]+\.[^.]+$
RewriteCond %{HTTPS}s ^on(s)|
RewriteRule ^ http%1://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

answered Aug 19 '17 at 15:04

RN Kushwaha

2,081
3
29
40

score 1 · Answer 4 · answered Apr 04 '19 at 14:17

I know, the problem already has an accepted solution. But there is a problem if the domain has also some subdomains. If your codeigniter handles subdomains too, the subdomains will be redirected to www too.

Here is the answer in this case. Let's say that your domain is www.thedomain.com, the code should be:

$sna = explode(".", $_SERVER['SERVER_NAME']);
if($sna[0]=="thedomain"){
    header("HTTP/1.1 301 Moved Permanently");
    header("Location: http://www.thedomain.com/".$_SERVER['REQUEST_URI']);
}

score 0 · Answer 5 · answered May 05 '19 at 06:22

you can use below code in all codeigniter website.

`

<IfModule mod_rewrite.c>
RewriteEngine On
 RewriteCond %{HTTP_HOST} !^www\.(.*)
 RewriteRule (.*) http://www.%{HTTP_HOST}/$1 [R=301,L]
 RewriteCond %{REQUEST_FILENAME} !-f
 RewriteCond %{REQUEST_FILENAME} !-d
 RewriteRule ^(.*)$ index.php/$1 [L]
</IfModule>

`

codeigniter redirect non-www to www

5 Answers5