note 103526 modified in function.header by danbrown

When using header(Location:), if you have the same site that you use which has different URIs, for example: www.example.com/a/mysite www.example.net you must remain consistent in how you reference it, or $_SESSION[] contents will be lost. An example would be a user enters www.example.com/a/mysite, then based on some decision they make, you want to header(Location:) them to another page. If you header(Location: http://www.example.net/page.php), $_SESSION[] will be lost. I solved this by forwarding them to a particular URI before I start saving $_SESSION[] variables: <?php if (strpos($_SERVER['REQUEST_URI'], "/a/mysite/") !== false) header('Location: http://www.example.net'); ?> --was-- When using header(Location:), if you have the same site that you use which has different URIs, for example: www.mainserver.com/a/mysite www.mysite.com you must remain consistent in how you reference it, or $_SESSION[] contents will be lost. An example would be a user enters www.mainserver.com/a/mysite, then based on some decision they make, you want to header(Location:) them to another page. If you header(Location: http://www.mysite.com/page.php), $_SESSION[] will be lost. I solved this by forwarding them to a particular URI before I start saving $_SESSION[] variables: <?php if (strpos($_SERVER['REQUEST_URI'], "/a/mysite/") !== false) header('Location: http://www.mysite.com'); ?> http://php.net/manual/en/function.header.php