Incomplete headers in CURL?

[dpacmittal]

What if I put incomplete headers in CURL? Would it auto-complete the headers. For eg:

 

$header_array[0] = "POST /dynamic/login.php HTTP/1.1";
        $header_array[1]= 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.10) Gecko/2009042316 Firefox/3.0.10 GTB5';
        $header_array[2]= "Host: www.mediafire.com";
        $header_array[3]= "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
        $header_array[4]= "Accept-Language: en";
        $header_array[5]= "Accept-Encoding: gzip,deflate";
        $header_array[6]= "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7";
        $header_array[7]= "Keep-Alive: 300";
        $header_array[8] = "Connection: keep-alive";
        $header_array[9]= "Cookie: ukey=$ukey;";
        $header_array[10]= "Referer: http://www.mediafire.com/";
        $header_array[11]= "Content-Type: application/x-www-form-urlencoded";
        $url="http://www.example.com/login.php";
        $params="login_email=".urlencode("[email protected]")."&login_pass=".urlencode("xxxxxxxxxxx")."&login_remember=on&submit_login=".urlencode("Login to MediaFire");
        //$params=urlencode($params);
        echo $params;
        $ch= curl_init();
        curl_setopt($ch, CURLOPT_URL,$url);
        curl_setopt($ch, CURLOPT_HTTPHEADER,$header_array);
        curl_setopt($ch, CURLOPT_REFERER, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION,TRUE);
        curl_setopt($ch, CURLOPT_HEADER,1);

        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
        $abc=curl_exec($ch);

 

 

Here I haven't set the content-length .. would it set by itself?