Exporting a DNS Zone file from the TransIP API

a-transip-zone-export.php

<?php
require __DIR__ . '/vendor/autoload.php';

use Transip\Api\Library\TransipAPI;
use Transip\Api\Library\Entity\Domain\DnsEntry as DnsEntry;

use Badcow\DNS\Zone;
use Badcow\DNS\Rdata\Factory;
use Badcow\DNS\ResourceRecord;
use Badcow\DNS\AlignedBuilder;

$generateWhitelistOnlyTokens = true;

// Login details, fill those in with your TransIP username, the file containing
// your private key, and the domain you would like to export
$login = "";
$privateKey = file_get_contents( '' );
$domainName = '';


$api = new TransipAPI(
    $login,
    $privateKey,
    $generateWhitelistOnlyTokens
);

$dnsentries = $api->domainDns()->getByDomainName( $domainName );
//print_r($dnsentries);

// Construct the zone file
$zone = new Zone($domainName . '.');
$zone->setDefaultTtl(1); // 1 means automatic

foreach( $dnsentries as $dnsEntry) {

    $rr = new ResourceRecord;
    $rr->setName($dnsEntry->getName());
    switch($dnsEntry->getType()) {
    case DnsEntry::TYPE_A:
        $rr->setRdata(Factory::A($dnsEntry->getContent()));
        break;
    case DnsEntry::TYPE_AAAA:
        $rr->setRdata(Factory::Aaaa($dnsEntry->getContent()));
        break;
    case DnsEntry::TYPE_CNAME:
        $rr->setRdata(Factory::Cname($dnsEntry->getContent()));
        break;
    case DnsEntry::TYPE_MX:
        list($pref,$cont) = explode(' ', $dnsEntry->getContent());
        $rr->setRdata(Factory::Mx($pref, $cont));
        break;
    case DnsEntry::TYPE_TXT:
        $rr->setRdata(Factory::Txt($dnsEntry->getContent()));
        break;
    default:
        throw new \RuntimeException('Migrating ' . $dnsEntry->type . ' records is not implemented');
    }
    $zone->addResourceRecord($rr);
}
echo AlignedBuilder::build($zone);

composer.json

{
	"require" : {
		"transip/transip-api-php" : "dev-master",
		"badcow/dns": "^1.0"
	},
	"repositories": [
		{
			"type" : "vcs",
			"url" : "git@github.com:transip/transip-api-php.git"
		}
	]
}

Please note that the TTL " $zone->setDefaultTtl(1); // 1 means automatic " will actually set it to one (1)
You might like to set it to 600 or 86400

Also made a repo with all the necessary deps and docs:
https://github.com/matthijs166/transip-dns-zone-exporter