$ch=curl_init("www.google.com");
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, TRUE);
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 6.0; en-GB; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 (.NET CLR 3.5.30729)');
curl_setopt($ch, CURLOPT_PROXY, "74.55.61.131:61336");
curl_setopt($ch, CURLOPT_PROXYUSERPWD,"user:pass");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$data=curl_exec($ch);
print_r($data);
<?php
$url = 'http://somesite.com';
$ch = curl_init();
curl_setopt($ch, curlOPT_URL,$url);
curl_setopt($ch, curlOPT_HTTPproxyTUNNEL, 0);
curl_setopt($ch, curlOPT_proxy, '74.55.61.131:61336');
curl_setopt($ch, curlOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, curlOPT_RETURNTRANSFER, 0);
curl_setopt($ch, curlOPT_CUSTOMREQUEST,'GET');
curl_setopt ($ch, curlOPT_HEADER, 1);
curl_exec ($ch);
$curl_info = curl_getinfo($ch);
curl_close($ch);
echo '<br />';
print_r($curl_info);
?>