title: PHP Curl - Session has expired
body: <p>I'm trying to login to a remote site using CURL but I just keep getting the error message your session has expired, please re-login.</p>
  
  <pre><code>$username="xxxxxx"; 
  $password="yyyyyyyy"; 
  $url="https://remotesite.com/my.activation.php3"; 
  $cookie="cookie.txt"; 
  
  $postdata = "username=".$username."&amp;password=".$password; 
  
  $ch = curl_init(); 
  curl_setopt ($ch, CURLOPT_URL, $url); 
  curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, FALSE); 
  curl_setopt ($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6"); 
  curl_setopt ($ch, CURLOPT_TIMEOUT, 60); 
  curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 0); 
  curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); 
  curl_setopt ($ch, CURLOPT_COOKIEJAR, $cookie); 
  curl_setopt ($ch, CURLOPT_REFERER, $url); 
  
  curl_setopt ($ch, CURLOPT_POSTFIELDS, $postdata); 
  curl_setopt ($ch, CURLOPT_POST, 1); 
  
  // check for errors before close
  $result = curl_exec($ch);
  echo $result;
  curl_close($ch);
  </code></pre>
  
  <p>The cookie file is writeable and something is getting written to it. Any ideas what I can try to keep the session going?</p>