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<?php echo "All 3 should show the fractions of second:\n"; echo var_dump((new \DateTime())->format('Y-m-d\TH:i:s.u')); echo var_dump((new \IntlDateFormatter( 'en-US', \IntlDateFormatter::FULL, \IntlDateFormatter::FULL, 'UTC', \IntlDateFormatter::GREGORIAN, 'yyyy-MM-dd HH:mm:ss.SSSSSS' ))->format(new \DateTime())); echo var_dump(datefmt_create( 'en-US', \IntlDateFormatter::FULL, \IntlDateFormatter::FULL, 'UTC', \IntlDateFormatter::GREGORIAN, 'yyyy-MM-dd HH:mm:ss.SSSSSS' )->format(new \DateTime()));

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