[PHP] $_SERVER['REQUEST_URI'] being trimmed

[Verdon Vaillancourt]

Hi :)
I am trying to build a simple mechanism to allow visitors to set a site  
preference (stored in a cookie) by clicking on a link. I want the  
cookie set and the original page reloaded with the new cookie set, when  
a visitor clicks on the link.

My link looks like this...
<a href="/switch.php?userLangChoice=fr&amp;sender=<?php echo  
$_SERVER['REQUEST_URI']; ?>">French</a>

My file switch.php looks like this...
<?php
        setcookie("userLang", $userLangChoice);
    if ($sender == "")
        $sender = "index.php";
    else
        $sender = "$sender";
                
     header("location:".$sender);
?>
Now, for the most part this works fine, but in some cases, my referring  
URL ($sender) is being truncated. Simple URLs such as  
'/listingsearch.php?Category%5B%5D=Hunting' work fine, although it is  
being returned as '/listingsearch.php?Category[]=Hunting'. More complex  
URLs like  
'/listingsearch.php? 
Accommodation%5B%5D=Outpost&Category%5B%5D=Fishing&Region%5B%5D=North- 
West' are being truncated at the first variable down to  
'/listingsearch.php?Accommodation[]=Outpost'

Is there something I can do to make sure the referring URL is not  
truncated and it would also be nice if it was left alone and not  
encoded or decoded.

Any thoughts? Thanks,
verdon
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