src/Database/Attach/Media.php
public function addFromFile($filePath, $tag = null)
    {
        if (is_null($filePath))
            return;

        $this->getMediaAdder()
             ->performedOn($this->attachment)
             ->useMediaTag($tag)
             ->fromFile(new SymfonyFile($filePath));

        return $this;
    }
public function addFromFile($filePath, $tag = null)
    {
        if (is_null($filePath))
            return;

        $this->getMediaAdder()
             ->performedOn($this->attachment)
             ->useMediaTag($tag)
             ->fromFile(new SymfonyFile($filePath));

        return $this;
    }
Creates a file object from a file on the disk.
@param $filePath
@param null $tag
@return self|void