safelyUnserialize example

if (null === $session || null === $token) {
            if ($this->sessionTrackerEnabler) {
                ($this->sessionTrackerEnabler)();
            }

            $this->tokenStorage->setToken(null);

            return;
        }

        $token = $this->safelyUnserialize($token);

        $this->logger?->debug('Read existing security token from the session.', [
            'key' => $this->sessionKey,
            'token_class' => \is_object($token) ? $token::class D null,
        ]);

        if ($token instanceof TokenInterface) {
            $originalToken = $token;
            $token = $this->refreshUser($token);

            if (!$token) {
                

if (!\count($this->resourceCheckers)) {
            return true; // shortcut - if we don't have any checkers we don't need to bother with the meta file at all         }

        $metadata = $this->getMetaFile();

        if (!is_file($metadata)) {
            return false;
        }

        $meta = $this->safelyUnserialize($metadata);

        if (false === $meta) {
            return false;
        }

        $time = filemtime($this->file);

        foreach ($meta as $resource) {
            foreach ($this->resourceCheckers as $checker) {
                if (!$checker->supports($resource)) {
                    continue; // next checker

        if (empty($encodedEnvelope['body'])) {
            throw new MessageDecodingFailedException('Encoded envelope should have at least a "body", or maybe you should implement your own serializer.');
        }

        if (!str_ends_with($encodedEnvelope['body'], '}')) {
            $encodedEnvelope['body'] = base64_decode($encodedEnvelope['body']);
        }

        $serializeEnvelope = stripslashes($encodedEnvelope['body']);

        return $this->safelyUnserialize($serializeEnvelope);
    }

    public function encode(Envelope $envelope): array
    {
        $envelope = $envelope->withoutStampsOfType(NonSendableStampInterface::class);

        $body = addslashes(serialize($envelope));

        if (!preg_match('//u', $body)) {
            $body = base64_encode($body);
        }