I've made a WordPress site. Before, I had a coded site in HTML. My new WordPress site is still in maintenance mode. But, I want to insert a PHP code above all the website content. This is my code:

    $referrer = $_SERVER["HTTP_REFERER"];
        $referrer = $_SERVER["SCRIPT_URI"].((!empty($_SERVER["QUERY_STRING"]))? '?'.$_SERVER["QUERY_STRING"]:'');
    $_SESSION["referrer"] = $referrer;
    $aid = $_GET["aid"]; 
        $aid = $_COOKIE["aid"]; 
        $aid = 1; 
    setcookie("aid", $aid, strtotime("+10 years"), "/"); 
    $_SESSION["aid"] = $aid; 

But I don't know how to insert it in avery page on my site. Is there any way to do this? If that's not possible, is there a different way to get a cookie when a query string is in the URL? Thanks in advance.

Regards, Luuk Faasse

1 Answer 1


WordPress theme should load header.php file for eacfront-endnd request, so the best place to add your custom code is in the header.php on the very top, before any HTML.

  • Thanks! But, now I have to insert a code that prints the value of the cookie. I have a code for that, but how to insert that into my page?
    – Luuk F.
    Mar 12, 2018 at 20:39
  • 1
    This hasn't really answered the question so shouldn't be marked as an answer...
    – rudtek
    Mar 12, 2018 at 21:35

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