cookies.php
public function isExpired($now)
    {
        if (! $this->expiry) {
            return true;
        }
        if (is_string($now)) {
            $now = strtotime($now);
        }

        return ($this->expiry < $now);
    }
public function isExpired($now)
    {
        if (! $this->expiry) {
            return true;
        }
        if (is_string($now)) {
            $now = strtotime($now);
        }

        return ($this->expiry < $now);
    }
Test to see if cookie is expired against the cookie format time or timestamp.
Will give true for a session cookie.

@param integer/string $now Time to test against. Result will be false if this time
is later than the cookie expiry. Can be either a timestamp
integer or a cookie format date.