PHP proxy

[php]
$requestUrl = 'http://request-url.com';
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $requestUrl);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_TIMEOUT, '300');
curl_setopt($curl, CURLOPT_PROXY, 'proxy-ip:proxy:port');
curl_exec($curl);
curl_close($curl);
[/php]