A PHP secure login cookie system

loginCookie.php

<?php
$connexion = new PDO('mysql:host=' . $host . ';port=' . $port . ';dbname=' . $dbname, $user, $pass);
$connexion->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
$connexion->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

// Cookie session validity duration (Default = 2 weeks)
$cookieSessionTimeout = 3600 * 24 * 14;

function createLoginCookie()
{
  global $connexion;
  global $cookieSessionTimeout;
  $sess_id = bin2hex(random_bytes(50));
  $unsecureRandomStr = bin2hex(random_bytes(50));
  $sess_hash = password_hash($unsecureRandomStr, PASSWORD_DEFAULT);
  $sess_timeout = time() + $cookieSessionTimeout;
  $query = 'INSERT INTO logsession values (:sess_id, :sess_hash, :sess_timeout)';
  $stmt = $connexion->prepare($query);
  if ($stmt->execute(array(
    'sess_id' => $sess_id,
    'sess_hash' => $sess_hash,
    'sess_timeout' => $sess_timeout,
  )))
  {
    /*Session added in db*/
    setcookie("sess_id", $sess_id, $sess_timeout, null, null, true, true);
    setcookie("sess_content", $unsecureRandomStr, $sess_timeout, null, null, true, true);
    return true;
  }
  else return false;
}
function checkLoginCookie()
{
  global $connexion;
  if (empty($_COOKIE['sess_id']) || empty($_COOKIE['sess_content']))
    return false;
  
  $sess_id = $_COOKIE['sess_id'];
  $sess_content = $_COOKIE['sess_content'];
  $query = 'SELECT * FROM logsession WHERE sess_id = :sess_id';
  $stmt = $connexion->prepare($query);
  if ($stmt->execute(['sess_id' => $sess_id]) && $stmt->rowCount() == 1)
  {
    $row = $stmt->fetch(PDO::FETCH_ASSOC);
    if (password_verify($sess_content, $row['sess_hash']) && time() < $row['sess_timeout'])
      return true;
  }
  setcookie("sess_id", '', time() - 1000, null, null, true, true);
  setcookie("sess_content", '', time() - 1000, null, null, true, true);
  return false;
}

?>

logsession.sql

CREATE TABLE `logsession` (
  `sess_id` varchar(100) NOT NULL,
  `sess_hash` varchar(100) NOT NULL,
  `sess_timeout` timestamp NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;