Sending Cookies Back via CURL in PHP

Cookies saved in a file can be automatically sent back on the next request. This is done using two options: the CURLOPT_COOKIEJAR option commands to accept and save cookies to a file, and the CURLOPT_COOKIEFILE option commands to send the saved cookies to the server.

Let's set these options:

curl.php<?php
  $cookieFilePath = $_SERVER['DOCUMENT_ROOT'] . '/cookie.txt';
  
  curl_setopt($curl, CURLOPT_COOKIEFILE, $cookieFilePath);
  curl_setopt($curl, CURLOPT_COOKIEJAR,  $cookieFilePath);
?>

Задание 1

Make two requests to the following page:

file.php<?php
  if (!empty($_COOKIE)) {
    echo date('H:i:s', $_COOKIE['time']);
  } else {
    setcookie('time', time(), time() + 3600, '/');
    echo 'cookie saved';
  }
?>

Make sure that on the first request the cookie is saved to the file, and on the second - it is sent back.