To develop custom curl functionality in drupal7

I am newbie to drupal and trying to develop a custom module for curl functionality of php which will get the content of page and will display the whole content as it is.I tried but it is not displaying the content below is the code that I have tried.

$items['mycurl'] = array(
'title' => 'My curl demo',
'page callback' => 'mycurl_curl',
'access callback' => TRUE,
'type' => MENU_CALLBACK,
);
return $items;
}

function mycurl_curl() {

$user_agent = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.65 Safari/537.36";
$postdata ="name=amit&pass=amit";
$options = array(

CURLOPT_CUSTOMREQUEST =>"GET", //set request type post or get
CURLOPT_POST =>false, //set to GET
CURLOPT_USERAGENT => $user_agent, //set user agent
CURLOPT_COOKIEFILE =>"cookie.txt", //set cookie file
CURLOPT_COOKIEJAR =>"cookie.txt", //set cookie jar
CURLOPT_RETURNTRANSFER => true, // return web page
CURLOPT_HEADER => false, // don't return headers
CURLOPT_FOLLOWLOCATION => true, // follow redirects
CURLOPT_ENCODING => "", // handle all encodings
CURLOPT_AUTOREFERER => true, // set referer on redirect
CURLOPT_CONNECTTIMEOUT => 120, // timeout on connect
CURLOPT_TIMEOUT => 120, // timeout on response
CURLOPT_MAXREDIRS => 10, // stop after 10 redirects
);

$url = "http ://localhost/drupal_commerce/product";

$ch = curl_init( $url );
curl_setopt_array( $ch, $options );
$content = curl_exec( $ch );
$err = curl_errno( $ch );
$errmsg = curl_error( $ch );
$header = curl_getinfo( $ch );
curl_close( $ch );

$header['errno'] = $err;
$header['errmsg'] = $errmsg;
$header['content'] = $content;
return $header;