get request and response header using curl - php

Question

I fetched the header response using following code
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, 1);
$c = curl_exec('http://plagiarismcheckerx.com');
echo $c;
curl_close($ch);
but i'm getting only response header. but the other section request header is not receiving.
i got the following response
HTTP/1.1 200 OK
Content-Length: 25041
Server: nginx/1.10.3
Date: Sat, 18 Feb 2017 18:55:31 GMT
Content-Type: text/html;
charset=UTF-8
Connection: keep-alive
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Set-Cookie:
PHPSESSID=66d5ecd1ad8e3a49b7e69af8aaec8e26; path=/ Vary: Accept-Encoding
but actual and complete header is given below . I copied it from chrome developer tool from network section.
Request URL:http://plagiarismcheckerx.com/
Request Method:GET
Status Code:200 OK
Remote Address:108.167.140.179:80
**Response Headers**
view source
Cache-Control:no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Connection:keep-alive
Content-Length:25041
Content-Type:text/html; charset=UTF-8
Date:Sat, 18 Feb 2017 18:59:27 GMT
Expires:Thu, 19 Nov 1981 08:52:00 GMT
Pragma:no-cache
Server:nginx/1.10.3
Vary:Accept-Encoding
**Request Headers**
view source
Accept:text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Encoding:gzip, deflate, sdch
Accept-Language:en-US,en;q=0.8
Cache-Control:max-age=0
Connection:keep-alive
Cookie:PHPSESSID=2c94b931c6f490824e33fb66fe094c5b; __lnkrntdmcvrd=-1; _ga=GA1.2.679844744.1487408717; _gat=1; __zlcmid=f9gEfJx3I2lwCx
Host:plagiarismcheckerx.com
Upgrade-Insecure-Requests:1
User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36