$url='http://www.сайт-с-голосованием.ru/голосование';
$cookie='nameis=name';
$post=array('name' => 'param'); 
$ch = curl_init(); 
curl_setopt ($ch, CURLOPT_URL, $url); 
curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, 0); 
curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0);  
curl_setopt ($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.9.0.5) Gecko/2008120122 Firefox/3.0.5');
curl_setopt($ch, CURLOPT_COOKIE, $cookie);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); 
curl_setopt ($ch, CURLOPT_REFERER, $url); 
curl_setopt ($ch, CURLOPT_POST, 1); 
curl_setopt ($ch, CURLOPT_FOLLOWLOCATION,0); 
curl_setopt ($ch, CURLOPT_HEADER, 0); 
curl_setopt ($ch, CURLOPT_POSTFIELDS, $post);