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<?php declare(strict_types=1);
namespace Cocotte\DigitalOcean;
use ArrayIterator;
use Assert\Assertion;
use IteratorAggregate;
final class HostnameCollection implements IteratorAggregate, \Countable
{
private $hostnames;
public function __construct(Hostname ...$hostnames)
Assertion::greaterThan($hostnames, 0, "There is no hostname");
$this->hostnames = $hostnames;
}
public static function fromScalarArray(array $value): self
return new self(
...array_map(
function (string $host) {
return Hostname::parse($host);
},
$value
)
);
public static function fromString(string $string): self
return self::fromScalarArray(array_map('trim', explode(',', $string)));
public function toString(): string
return implode(',', $this->hostnames);
public function __toString()
return $this->toString();
public function toLocal(): HostnameCollection
$localHosts = [];
foreach ($this->hostnames as $value) {
$localHosts[] = $value->toLocal();
return new self(...$localHosts);
public function getIterator()
return new ArrayIterator($this->hostnames);
public function count()
return count($this->hostnames);
chrif /
cocotte
