PHP：在AJAX请求开始时使用setcookie不保存cookie后请求？

Question

whenever the ajax page is called, i run:

setcookie($filtersCookie, $cookieVal, time() + 86400); // 1 day

and when the page is refreshed, i use the following code to see if there were any past filters saved:

if(isset($_COOKIE[$filtersCookie])) {

but the cookie never exists after a page refresh. any ideas as to why this may happen?

setcookie is used before any browser output from the ajax call.

Answer 1

If your Ajax scripts resides in another directory than the calling page, then you should also use the path parameter

setcookie($filtersCookie, $cookieVal, time() + 86400, "/"); // 1 day

By default the cookie will be available from the directory the cookie is set on, using "/" will make it available to all paths.