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Monkeybus
Asked: 2017-04-08 18:30:13 +0800 CST

Changing default index page with .htaccess

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Suppose my domain is foo.com, I have index.html in my root directory.
Then if I install a shopping cart in /cart and it has index.php as its index page.

How would I change the default index to /cart/index.php using .htaccess?

server

2 Answers

  1. Add the following to make first.html your index page

    DirectoryIndex first.html

    You can also have multiple files as in :

    DirectoryIndex first.html index.htm index.html index.php

    Here the server will check for files from left to right and use the first one available

    So I guess you configuration should be

    DirectoryIndex index.php index.html

    Since you want ot give more priority to index.php when it is found in a directory

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  2. Use Redirections:

    You can use Redirect directive (Mod_Alias). Edit your .htaccess file and add this line:

    Redirect permanent "/index.html" "/cart/index.php"

    Or you can use RedirectPermanent directive. Edit your .htaccess file and add this line:

    RedirectPermanent "/index.html" "/cart/index.php"

    Use Rewrite engine:

    You can use Mod_Rewrite to achieve the same result as the above. Edit your .htaccess file and add these lines:

    Options +FollowSymLinks
RewriteEngine On
RewriteCond %{HTTP_HOST} !cart
RewriteRule "^$" "/cart/index.php$1" [R=301,L]

    Further reading about Mod_Rewrite: [1]; [2]; [3].

    Smart redirection, using PHP:

    Edit your .htaccess file and add these lines:

    # Obliterate previous DirectoryIndex order:
DirectoryIndex disabled

# Create new DirectoryIndex order:
DirectoryIndex site-condition.php index.php index.html

    Create PHP file, called site-condition.php, which will redirect the initial request to the first existing file according to this order priority:

    1. /cart/index.php
    2. /index.php
    3. /index.html

    The content of site-condition.php could looks like:

    <?php
        $primary_index = 'cart/index.php';
        $secondary_index = 'index.php';
        $tertiary_index = 'index.html';

        if (file_exists($primary_index)) {
                header("Location: /$primary_index");
                exit;
        } elseif (file_exists($secondary_index)) {
                header("Location: /$secondary_index");
                exit;
        } elseif (file_exists($tertiary_index)) {
                header("Location: /$tertiary_index");
                exit;
        } else {
                echo "<html><head><title>Under construction!</title></head>";
                echo "<body><h1>Under construction!</h1></body></html>";
                exit;
        }
?>

    According to this example /cart must be a sub directory of DocumentRoot of the current VHost.

    Further reading about used PHP functions: [1]; [2]; [3].

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