Shoutbox

Hey guys I wanted a way for users to select the style sheet they want to use for  my site and save their selection in a cookie so my friend Ezra wrote this up for me but it dosent work becouse the code just gives me and error "unexpected { on line 4"

so here is the code its not all of it just the part that gives the error

code:

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<?php
//Setting the cookie

if(!isset($_COOKIE['css']){
    if(isset($_GET['style']) && $_GET['style'] != ""){
        setcookie("css", htmlspecialchars($_GET['style'], ENT_QUOTES), time()+11156);
        header("/");
    }
}
?>

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if you need more code just request it