App\services\ImportService::mapFile PHP Method

    public function mapFile($entityType, $filename, $columns, $map)
    {
        require_once app_path() . '/Includes/parsecsv.lib.php';
        $csv = new parseCSV();
        $csv->heading = false;
        $csv->auto($filename);
        Session::put("{$entityType}-data", $csv->data);
        $headers = false;
        $hasHeaders = false;
        $mapped = [];
        if (count($csv->data) > 0) {
            $headers = $csv->data[0];
            foreach ($headers as $title) {
                if (strpos(strtolower($title), 'name') > 0) {
                    $hasHeaders = true;
                    break;
                }
            }
            for ($i = 0; $i < count($headers); $i++) {
                $title = strtolower($headers[$i]);
                $mapped[$i] = '';
                foreach ($map as $search => $column) {
                    if ($this->checkForMatch($title, $search)) {
                        $hasHeaders = true;
                        $mapped[$i] = $column;
                        break;
                    }
                }
            }
        }
        $data = ['entityType' => $entityType, 'data' => $csv->data, 'headers' => $headers, 'hasHeaders' => $hasHeaders, 'columns' => $columns, 'mapped' => $mapped];
        return $data;
    }