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I am trying to set a cookie, based on a GET variable from a page.

The page URL looks like: mysite.com/?my_var=somevalue

I'm trying this, but can't see what I'm doing wrong..

// make 'my_var' available as get_query_var('my_var')..
function add_query_vars_filter($vars){
    $vars[] = "my_var";
    return $vars;
}
add_filter('query_vars', 'add_query_vars_filter');

add_action('init', 'my_setcookie');

// take the query_var 'my_var' and set it as cookie 'my_cookie'
function my_setcookie() {
    setcookie('my_cookie', get_query_var('my_var'), strtotime('+1 day'));
}

Would love a little help with this!

Thanks in advance.

  • possible duplicate of Setcookie works on admin but not front end – gmazzap May 24 '14 at 17:53
  • You want to set cokkie on every page wherever you get that my_var or on specific page like homepage or post page. :) – ksr89 May 24 '14 at 18:02
  • Thanks G.M. - I'll try that - looks as though it may work for this.. – user3232702 May 24 '14 at 18:04
  • Thanks ksr89 - I just want to set it for one specific page. – user3232702 May 24 '14 at 18:05
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On the page where you want to set the cookie write this code and check

if(get_query_var('my_var') == 'somevalue'){
    setcookie('my_cookie', get_query_var('my_var'), strtotime('+1 day'));
}

If we go with your code then it will set coookie on every page who having query variable

?my_var=somevalue

  • 1
    Thanks ksr89 - that works, as long as I can edit the page template for that page, to set the cookie before any output.. However, I don't want to use a custom edited template page, so I think so I think I am limited to either a plugin (beyond my skills..), or site-wide functions available in the functions.php - So I did a combination of yours and the page that G. M. mentioned: – user3232702 May 26 '14 at 14:23

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