php - can I use this twice?

[jamesmorris86]

I have a div on my site that is hidden on desktop then comes visable on mobile devices. Ideally I want to use the following code to include my content in both my normal content div, and my mobile div, and just have one showing at a time.

If I try to use it twice in my index.php page, the include default works but when I try to access a page it halts any content from loading.

Is there a way I can use this code twice in one page?

 <?php

    if (isset($_GET['nav'])) 
{
    if (strpos($_GET['nav'], "/")) 
{
    $direc = substr(str_replace('..', '', $_GET['nav']), 0, strpos($_GET['nav'], "/")) . "/";
    $file = substr(strrchr($_GET['nav'], "/"), 1);
    if (file_exists($direc.$file.".php")) 
{
    include($direc.$file.".php");
} else {
    include("error.php");
}
} else {
    if (file_exists(basename($_GET['nav']).".php")) 
{
    include(basename($_GET['nav']).".php");
} else {
    include("error.php");
}
}
} else {
    include("default.php");
}
?>

Thanks

 

[unwashed potato!]

you can use it twice yes of course, but just depends how it's used the second time as you don't want a constant loop which sounds like it could be the case if it's not loading when called twice.