src/Image.php
public function serialize()
    {
        $data = array(
            $this->id,
            $this->title,
            $this->description,
            $this->tags,
            $this->publishAt,
            $this->updateAt,
            $this->img
        );

        return serialize($data);
    }
public function serialize()
    {
        $data = array(
            $this->id,
            $this->title,
            $this->description,
            $this->tags,
            $this->publishAt,
            $this->updateAt,
            $this->img
        );

        return serialize($data);
    }
{@inheritDoc}