为什么我的PHP不能直接访问我的西班牙语网站？

Question

My code works for all my sites except the ones that begin with "es". Whenever I try to direct to those sites, it takes me back to index.html

This is my index.php code:

<?php 
/*
*
License: Creative Commons Attribution 3.0 Unported
License URL: http://creativecommons.org/licenses/by/3.0/
 *
 */
include "app/config.php";
include "app/detect.php";

if ($page_name=='') {
    include $browser_t.'/index.html';
    }
elseif ($page_name=='index.html') {
    include $browser_t.'/index.html';
    }
elseif ($page_name=='es/index.html') {
    include $browser_t.'/es/index.html';
}

else
    {
        include $browser_t.'/404.html';
    }

?>

I am linking my site so that you say what I mean. In the top right corner there is a hyperlink that says "Español" and when you click it, it's supposed to take you to a Spanish version of the page you're currently on. Instead, it simply takes you to the index tab anew and it changes the subdirectory, but my translated page does not appear.

Inside the config.php I have the following:

<?php
/*
 * 
License: Creative Commons Attribution 3.0 Unported
License URL: http://creativecommons.org/licenses/by/3.0/
 *
 */
$current_page_uri = $_SERVER['REQUEST_URI'];
$part_url = explode("/", $current_page_uri);
$page_name = end($part_url);
$email_id = "[e-mail]";
?>

And I would add my detect.php code here but it is a large file and not the problem I am attempting to address so I will merely link it instead.

PS Everything is linked appropriately and I have triple checked everything. My only suspect left is my index.php which I am unsure of why.

Answer 1

$part_url = explode("/", $current_page_uri);
$page_name = end($part_url);

When the URL is "es/index.html", that code will assign $page_name to "index.html", since you're only interested in what is after the last /.

One way could be to check the end of the string by using strrpos, e.g.

if(strrpos("es/index.html", $current_page_uri) !== FALSE)
    // Go to spanish site
else if(strrpos("index.html", $current_page_uri) !== FALSE)
    // Normal index page

You could also check the second to last element in $part_url and check if it's "es", or any other language code.