PHP curl get headers

curl.php

<?php
  
$url = "https://www.google.com/";
$curlObj = curl_init();
  
curl_setopt($curlObj, CURLOPT_URL, $url);
curl_setopt($curlObj, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curlObj, CURLOPT_HEADER, 1); // must set this line
curl_setopt($curlObj, CURLOPT_SSL_VERIFYPEER, false);
$result = curl_exec($curlObj);
      
preg_match_all('/^Set-Cookie:\s*([^;]*)/mi',
                $result, $match_found);
$cookies = array();
  
foreach($match_found[1] as $item) {
    parse_str($item, $cookie);
    $cookies = array_merge($cookies, $cookie);
}
      
print_r( $cookies);
curl_close($curlObj);
?>