- var_dump: documentation ( source)
<?php
$dateString = '2019-10-10T15:32:38.916234Z';
$date = new \DateTimeImmutable($dateString);
var_dump($date);
$dateString = '2019-10-10T15:32:38.916234Z';
$date = \DateTimeImmutable::createFromFormat('Y-m-d\TH:i:s.uP', $dateString);
var_dump($date);