Why are cookies deleted after re-entering the page?

Question

PHP

I send cookies and initiate the session.

<?php
session_start();
if(!isset($user)){
$s = file_get_contents('http://ulogin.ru/token.php?token=' . $_POST['token'] . '&host=' . $_SERVER['HTTP_HOST']);
$user = json_decode($s, true);
}
if(isset($user)){
    $first_name = $user['first_name'];
    $last_name = $user['last_name'];
    $network = $user['network'];
    $identity = $user['identity'];
    $page_adress = $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
    $_SESSION['user']=$user;
    $_SESSION['page_adress'] = $page_adress;
    $life_time = time()+(60 * 60 * 24 * 7);
    $access_path = "/";
    $access_domain = "domain.com";
    setcookie('first_name', $first_name, $life_time, $access_path, $access_domain);
    setcookie('last_name', $last_name, $life_time, $access_path, $access_domain);
    setcookie('network', $network, $life_time, $access_path, $access_domain);
    setcookie('identity', $identity, $life_time, $access_path, $access_domain);
    setcookie('page_adress', $page_adress, $life_time, $access_path, $access_domain);
}
?>

After that, another scenario accepts cookies first. If the cookies are not recorded, or the user has deleted them, then I try to extract the information from the session.

$boolCheckCookie = false;
     $pageAdressCheck = false;
     if(isset($_COOKIE['first_name'])){ 
          $username['first_name'] = $_COOKIE['first_name']; 
          $username['last_name'] = $_COOKIE['last_name'];
          $username['network'] = $_COOKIE['network'];
          $username['identity'] = $_COOKIE['identity'];
          $page_adress = $_COOKIE['page_adress'];
          $boolCheckCookie = true;
          echo "Отработали куки <br>";
     }
     else{
          if($boolCheckCookie == false){
               session_start();
               if(isset($_SESSION['user'], $_SESSION['page_adress'])){
               $username = $_SESSION['user'];
               $page_adress = $_SESSION['page_adress'];
               echo "Отработала сессия <br>";
               }
          }
     }

The problem is this: after I run the first script again, the browser cookies are deleted, and the session passes empty fields. Tell me what's wrong?

Answer 1

At you at each call of the top code cookies are redefined.
if(!isset($user)) always returns True in your case.
I also hope you change the domain name in the code to your own. And if you use a subdomain or www, then put a dot before the domain.

Answer 2

Tried for all files at the very beginning to include session_start ()? Maybe PHP forgets to set cookies in the second file if session_start fails