PHP에서 쿠키 내용을 업데이트하는 방법

//   php COOKIE设置函数立即生效，支持数组
 
function cookie($var, $value = '', $time = 0, $path = '', $domain = '', $s = false)
{
    $_COOKIE[var] = $value;
    if (is_array($value)) {
        foreach ($value as $k => $v) {
            setcookie($var .'['.$k.']', $v, $time, $path, $domain, $s);
        }
    } else {
            setcookie($var,$value, $time, $path, $domain, $s);
    }
}

$_COOKIE[$var] = $value;
setcookie($var,$value,$time,$path,$domain,$s);