Curl Proxy

$proxy = "140.119.98.33:80"; //<-optional proxy IP

$ch = curl_init(); 
curl_setopt($ch, CURLOPT_URL, 'http://www.mojeip.cz'); 
curl_setopt($ch, CURLOPT_HEADER, 1); 

if($proxy){
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1); 
curl_setopt($ch, CURLOPT_PROXY, "$proxy"); 
}

$data = curl_exec($ch); 
echo $data;
curl_close($ch);