PHP CURL script runs but it does not set the cookie - php

Question

Im trying to set a cookie through PHP CURL for more than twenty four hour for no avail.
Before i have been setting cookies in my browser by adding them as parameters in a url as shown below
http://localhost/setc.php?userid=123&panelid=1
but now i need to set the cookie when i run a script(setcookie.php)
below is the latest of various types of code that i tried.
setcookie.php
$c = curl_init('http://localhost/atst.php?userid=628929&panelid=1');
curl_setopt($c, CURLOPT_VERBOSE, 1);
curl_setopt($c, CURLOPT_COOKIE, 'userid=123; panelid=1');
curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);
$page = curl_exec($c);
curl_close($c);
it still does not create the cookie, can anybody help out
P.S : if you guys too cant figure this out at least give me a hint/guide on how to set a simple cookie without any complications

Answer 1

The cookiejar is only saved when you close the curl handle using curl_close($ch).
From the manual:
CURLOPT_COOKIEFILE The name of the file containing the cookie data. The cookie file can be in Netscape format, or just plain HTTP-style headers dumped into a file. If the name is an empty string, no cookies are loaded, but cookie handling is still enabled.
CURLOPT_COOKIEJAR The name of a file to save all internal cookies to when the handle is closed, e.g. after a call to curl_close.
http://www.php.net/manual/en/function.curl-setopt.php
$ckfile = tempnam ("/tmp/", "CURLCOOKIE");
$BASEURL='http://localhost/openx/www/api/json/index.php/main/authenticate/';
$POSTFIELDS='username='.$username.'&password='.$password.'';
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_COOKIEJAR, "/tmp/cookieFileName");
curl_setopt($ch, CURLOPT_URL,'http://localhost/openx/www/api/json/index.php/main/authenticate/');
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $POSTFIELDS);
ob_start(); // prevent any output
$result=curl_exec ($ch); // execute the curl command
ob_end_clean(); // stop preventing output
$result = curl_exec($ch);
curl_close($ch);