Services\Synchronize::restoreDB PHP Method

    public function restoreDB($restore_dir)
    {
        $restore_db_file = "{$restore_dir}/db/database_backup.sql";
        if (!File::exists(stored_backups_path($restore_db_file))) {
            return;
        }
        $this->dbConnections();
        $delimiter = "-- --------------------------------------------------------\n";
        $fp = fopen($restore_db_file, 'r');
        $buffer = '';
        while (!feof($fp)) {
            // Read the sql files in chunks to avoid problems with large files
            $buffer .= fread($fp, 100);
            if (str_contains($buffer, $delimiter)) {
                list($statement, $extra) = explode($delimiter, $buffer, 2);
                $buffer = $extra;
                try {
                    \DB::unprepared($statement);
                } catch (\Illuminate\Database\QueryException $e) {
                    // Do nothing, if empty statement is occured
                }
            }
        }
    }