ISO3166-1 Alpha-2 && Alpha-3 && Numeric | delimiter = "," && enclosure = '"'

ISO3166-1.csv

symfony-fixtures.php

<?php

namespace AppBundle\DataFixtures\ORM;

use AppBundle\Entity\Country;
use Doctrine\Common\DataFixtures\FixtureInterface;
use Doctrine\Common\Persistence\ObjectManager;

class LoadCountryData implements FixtureInterface
{
    public function load(ObjectManager $manager)
    {
        $resource = 'https://gist.github.com/iBet7o/6a6bde83cd9aa01f932b3410310ea3fd/raw/ISO3166-1.csv';
        $data = file($resource);
        $countries = array_map('str_getcsv', $data);

        $headers = array_shift($countries);

        array_walk($countries, function ($country, $key) use ($headers, $manager) {
            $country = array_combine($headers, $country);

            $Country = new Country();
            $Country
                ->setName($country['name'])
                ->setAlpha2($country['ISO3166-1-Alpha-2'])
                ->setAlpha3($country['ISO3166-1-Alpha-3'])
            ;

            $manager->persist($Country);
        });

        $manager->flush();
    }
}