<?php
$host = "stackoverflow.com";
$port = 80;
$q = "/";
$v = array(
"User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0.2) Gecko/20100101 Firefox/6.0.2",
"Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
"Accept-Language: en-gb,en;q=0.5",
"Accept-Encoding: gzip, deflate",
"Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7",
"Proxy-Connection: Close",
"Cookie: PREF=ID=2bb051bfbf00e95b:U=c0bb604",
"Cache-Control: max-age=0",
"Connection: Close"
);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, trim("http://".trim($host).$q));
curl_setopt($ch, CURLOPT_PORT, intval(trim($port)));
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_ENCODING, "");
curl_setopt($ch, CURLOPT_HTTPHEADER, $v);

/* only need verbose report */
curl_setopt($ch, CURLOPT_VERBOSE, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_exec($ch);
?>