PHP-da Cookielarni Darhol O'chirish

Cookieni o'chirganda darhol $_COOKIE o'zgarishi uchun, bizga allaqachon ma'lum bo'lgan ayyor usuldan foydalanishimiz mumkin:

php<?php
  setcookie('test', '', time());
  unset($_COOKIE['test']);
  
  var_dump($_COOKIE['test']);
?>

Allaqachon o'chirilgan cookieni qayta-o'chirmaslik uchun shart qo'shamiz:

php<?php
  if (isset($_COOKIE['test'])) {
    setcookie('test', '', time());
    unset($_COOKIE['test']);
  }
  
  var_dump($_COOKIE['test']); // o'chirildi
?>