src/Activator/CookieActivator.php
public function isActive($name, Context $context)
    {
        // Disable features which aren't whitelisted
        if ($this->mode === self::WHITELIST && !in_array($name, $this->features, true)) {
            return false;
        }

        // Disable features which are blacklisted
        if ($this->mode === self::BLACKLIST && in_array($name, $this->features, true)) {
            return false;
        }

        // Disable if non cookie exists
        if (!array_key_exists($this->name, $_COOKIE)) {
            return false;
        }

        // Enable, if feature is set in cookie
        return in_array($name, array_map('trim', explode($this->separator, $_COOKIE[$this->name])), true);
    }
public function isActive($name, Context $context)
    {
        // Disable features which aren't whitelisted
        if ($this->mode === self::WHITELIST && !in_array($name, $this->features, true)) {
            return false;
        }

        // Disable features which are blacklisted
        if ($this->mode === self::BLACKLIST && in_array($name, $this->features, true)) {
            return false;
        }

        // Disable if non cookie exists
        if (!array_key_exists($this->name, $_COOKIE)) {
            return false;
        }

        // Enable, if feature is set in cookie
        return in_array($name, array_map('trim', explode($this->separator, $_COOKIE[$this->name])), true);
    }
{@inheritdoc}