Craft\SeomaticService::humanFileSize PHP Method

    public function humanFileSize($size)
    {
        if ($size >= 1073741824) {
            $fileSize = round($size / 1024 / 1024 / 1024, 1) . 'GB';
        } elseif ($size >= 1048576) {
            $fileSize = round($size / 1024 / 1024, 1) . 'MB';
        } elseif ($size >= 1024) {
            $fileSize = round($size / 1024, 1) . 'KB';
        } else {
            $fileSize = $size . ' bytes';
        }
        return $fileSize;
    }