//1. GET Request for Setting Cookie-Information PHPSESSID and YII_CSRF_TOKEN
                $sh = curl_share_init();
                curl_share_setopt($sh, CURLSHOPT_SHARE, CURL_LOCK_DATA_COOKIE);           
                
               // $cookie = 'C:/Temp/cookies.txt';   
                 
                 //Initialize Handle
                $handle1 = curl_init();
                curl_setopt($handle1, CURLOPT_SHARE, $sh);                
               // curl_setopt($handle1, CURLOPT_COOKIEJAR,  $cookie );              
               // curl_setopt($handle1, CURLOPT_COOKIESESSION, TRUE);              
                curl_setopt($handle1, CURLOPT_URL, "https://limesurvey.xxxxx.xx/limesurvey/index.php?r=admin");               
                curl_setopt($handle1, CURLOPT_FOLLOWLOCATION, true );              
                curl_setopt($handle1, CURLOPT_RETURNTRANSFER, true );
                //Execute Request
                $output = curl_exec ( $handle1 );            
                
                   //Find YII-Token
                $regex_pattern_yii = "~YII_CSRF_TOKEN=(.+?)(?=~";  
                $search_yii = preg_match_all($regex_pattern_yii, $output, $matches_out);
                $yii_token = urldecode($matches_out[1][0]);             
                
                unset($matches_out);
//2. Send POST Request with Cookie-Information and YII-Token 
                          
                $param = array(
                    'authMethod' => "Authdb",
                    'user' => "xxxxx",
                    'password' => "xxxxx",                 
                    "YII_CSRF_TOKEN" => $yii_token,
                    "loginlang" => "default",
                    "action" => "login",
                    "width" => "1920",
                    "login_submit" => "login"
                );     
                   
                $handle2 = curl_init();
                curl_setopt($handle2, CURLOPT_SHARE, $sh);
                curl_setopt($handle2, CURLOPT_URL, "https://limesurvey.xxxxx.xx/limesurvey/index.php?r=admin");
                curl_setopt($handle2, CURLOPT_POST, TRUE);            
                curl_setopt($handle2, CURLOPT_POSTFIELDS, $param);     
                curl_setopt($handle2, CURLOPT_RETURNTRANSFER, TRUE);          
                curl_setopt($handle2, CURLOPT_FOLLOWLOCATION, TRUE);
                curl_setopt($handle2, CURLOPT_SSL_VERIFYPEER, FALSE);
                curl_setopt($handle2, CURLOPT_HEADER, TRUE);
                curl_setopt($handle2, CURLINFO_HEADER_OUT, TRUE);
                curl_setopt($handle2, CURLOPT_VERBOSE, TRUE);
               // curl_setopt($handle2, CURLOPT_COOKIEFILE,  $cookie );   
                
                $output = curl_exec ( $handle2 );                 
                
                curl_share_close($sh);
                
                curl_close ( $handle1 );
                curl_close ( $handle2 );