reading csv file and inserting it in the database

csvImportToDB.php

	public function importCsv($model, $fileName)
	{
		$model = '\\App\\Models\\' . $model;
		$file = public_path('csv/' . $fileName . '.csv');
		
		$arr = $this->csvToArray($file);

		foreach ($arr as $row)
		{
			unset($row['id']);
			unset($row['created_at']);
			unset($row['updated_at']);
			$model::create($row);
		}
		
		return 'All data imported successfully.';
	}
	
	private function csvToArray($filename = '', $delimiter = ',')
	{
		if (!file_exists($filename) || !is_readable($filename)) {
			return false;
		}
		
		$columns = null;
		$data = [];
		if (($file = fopen($filename, 'r')) !== false)
		{
			while (($row = fgetcsv($file, 5000, $delimiter)) !== false)
			{
				if (!$columns) {
					$columns = $row;
				}
				else {
					$data[] = array_combine($columns, $row);
				}
			}
			fclose($file);
		}
		
		return $data;
	}