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<?php
namespace Recurrence\Rrule\Transformer;
use Recurrence\Rrule\Extractor\DtStartExtractor;
use Recurrence\Model\Exception\InvalidRruleException;
class DtStartTransformer implements RruleTransformerInterface
{
/**
* @throws InvalidRruleException
*/
public function transform(array $values): \DateTime
$this->validate($values);
if (count($values) == 2 && substr($values[1], -1) == 'Z') {
$dtStart = \DateTime::createFromFormat('Ymd\THis\Z', $values[0], new \DateTimeZone('UTC'));
} elseif (count($values) == 2) {
$dtStart = \DateTime::createFromFormat('Ymd\THis', $values[0]);
} else {
$dtStart = \DateTime::createFromFormat('Ymd', $values[0]);
}
if ($dtStart === false) {
throw new InvalidRruleException(DtStartExtractor::RRULE_PARAMETER, (string) $values[0]);
return $dtStart;
protected function validate(array $values): void
if (!isset($values[0])) {
throw new InvalidRruleException(DtStartExtractor::RRULE_PARAMETER);
Samffy /
recurrence
