What do cookies saved with curl look like?

Question

HTTP Cookies

What do cookies saved with curl look like?
Here is the curl request
<?php
set_time_limit(0);
ob_implicit_flush();
$uref = " site2.ru/2.php ";
$gurl = " site.ru ";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $gurl);
curl_setopt($ch, CURLOPT_COOKIEFILE, " site/referer/cookie.txt ");
curl_setopt($ch, CURLOPT_COOKIEJAR, " site/referer/cookie.txt ");
curl_exec($ch);
curl_close($ch);
?>
I run curl and nothing is saved in /cookie.txt.
Can you show what is inside cookie.txt when you open it..

Answer 1

For example
# Netscape HTTP Cookie File
# https://curl.haxx.se/docs/http-cookies.html
# This file was generated by libcurl! Edit at your own risk.
#HttpOnly_.instagram.com TRUE / TRUE 0 rur ATN
.instagram.com TRUE / TRUE mid
.instagram.com TRUE / TRUE mcd 3
.instagram.com TRUE / TRUE 1574950808 csrftoken
#HttpOnly_.instagram.com TRUE / TRUE 1574972707 sessionid
www .instagram.com FALSE / FALSE 1543004702 sessionid
#HttpOnly_.instagram.com TRUE / TRUE 0 urlgen

Answer 2

and see for yourself?