I am experiencing some odd behavior with my URL routing system. I recently updated the PHP version of my server to PHP8 (from PHP 5.5), so I am not sure if it started then, or if was something that I just had never noticed prior.

Here is a rundown of the issue:

I get the expected result when I visit /login/ to my application, however, if I visit /user/login/ then it still displays my login page, versus a page for the user login.

Here is my .htaccess:

# ----------------------------------------------------------------------
# | Rewrite engine                                                     |
# ----------------------------------------------------------------------

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
RewriteCond %{HTTP:Authorization} ^(.*)
RewriteRule ^(.*) - [E=HTTP_AUTHORIZATION:%1]
</IfModule>

Here is my simple routing:

<?php
@list($page_url,$url_vars) = explode('?',$page_url);

$rules = array(                         
    '{login/$}'                         => 'login.php',
    '{logout/$}'                        => 'login.php?action=logout',
    '{dashboard/$}'                     => 'dashboard.php',
    '{feed/$}'                          => 'feed.php',
    '{ajax/([^/]+)$}'                   => 'ajax.php?action=$params[1]',
    '{user/([^/]+)/$}'                  => 'user.php?username=$params[1]&albums=false',
);
$found = false;
foreach ($rules as $pattern => $target) {
    if (preg_match($pattern, $page_url, $params)) {
        @list($page,$query) = explode('?',$target);
        $query = preg_replace_callback('/$params[(d+)]/',function($m) use ($params) { 
            return $params[$m[1]];
        }, $query);
        parse_str($query, $url_query_vars);
        /*
        foreach ($url_query_vars as $var => $value) {
            $query_vars[$var] = $value;
        }
        */
        extract($url_query_vars);
        //print_r($url_query_vars);
        require $page;
        $found = true;
        break;
    }
}
?>

Basically, /ajax/feed/ is getting routed feed.php or /user/login/ is getting routed to login.php and I can’t figure out what is causing the issue.

Anyone notice anything that may be the culprit?