PHP setcookie function not being set on wordpress splash page implementation

Question

So I'm trying to get a splash page implemented on a wordpress site. I've looked around and read about how to do it using PHP. The idea of the splash page is to redirect people that haven't viewed the site to a splash page that encourages them to donate. The page is already set to a static homepage which I am making the splash page be. Provided here is the code that I have for the cookie, for some reason when I go into my settings on chrome and check to see if the cookie is being written it doesn't show up.

<?php
  if((strpos($_SERVER['HTTP_REFERER'], get_bloginfo('home')) === false)  && !$_SERVER['QUERY_STRING'] && $_COOKIE["CookieName"] != 'true') :
  setcookie("CookieName", 'true', time() + 3600*24*15, "/~user/");
?>
//splash page code
<?php else : ?> //theme code <?php endif; ?>

The else condition is the information for the homepage that was created by the theme. The URL for the site is in the format of siteIP/~user/ . If you guys have some feed back that would be greatly appreciated. Also if you can provide a source so that I can read up on it that would also be appreciated. Thanks for your time.

Answer 1

Sorry for posting an answer but I can't comment because I don't have the rep.

Besides reviewing the comments above, try simplifying - check that the if statement is being executed, then you'll know if you have an error in the cookie setting.

Also, your code as quoted doesn't have a closing statement, I assume you have that in the actual page but thought I would mention that.

Answer 2

The reason that it didn't work is because there was a file that was overwriting the splash page itself so the code on the splash page wasn't being called in the first place. It's a matter of just naming files so that it doesn't have any additional files overwriting it the content that you put up there.