[T2DMan]

As well as non www to www redirects, there is a need for redirects from index.php or index.html to the root of a domain.

either:
www.domain.com/index.php to www.domain.com or
www.domain.com/directory/index.php to www.domain.com/directory/

.htaccess
[PHP]
Options +FollowSymLinks
RewriteCond %{THE_REQUEST} ^.*\/index\.php
RewriteRule ^(.*)index\.php$ http://www.domain.com [R=301,L]

[/PHP]

If you add the following to the first php of every index.php file, it will 301 redirect to the root. You can create a function or an include file that includes the following code:


[PHP]
if(preg_match("/[index.php]$/",$_SERVER[REQUEST_URI]))
{

$url="http://".$_SERVER[HTTP_HOST].preg_replace("/(index.php)$/","",$_SERVER[REQUEST_URI]);
$sapi=php_sapi_name();
if (PHP_VERSION >= '4.3.0')
{
header("Location: $url", 0, 301);
}
else if ($sapi == 'cgi' OR $sapi == 'cgi-fcgi')
{
header("Location: $url");
// Call the status header after Location so we are sure to wipe out the 302 header sent by PHP
header('Status: 301 Moved Permanently');
}
else
{
header("Location: $url");
header('HTTP/1.1 301 Moved Permanently');
}
}
[/PHP]



Please test that it works, no guarantees for your particular server configuration.

The following script will give the values of all your server variables on your system:

[PHP]
<pre>
<? print_r($_SERVER);?>
</pre>
[/PHP]