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<?php //DateTime $date = new DateTime('2008-07-01T22:35:17+08:00'); $mutable = DateTime::createFromFormat( 'Y-m-d H:i:s', '2008-07-01 00:00:00', $date->getTimeZone() ); //DateTimeImmutable $immutable = DateTimeImmutable::createFromFormat( 'Y-m-d H:i:s', '2008-07-01 00:00:00', $date->getTimeZone() ); var_dump([ 'Date Original' => $date->format(DATE_ATOM), 'DateTime::createFromFormat' => $mutable->format(DATE_ATOM), 'DateTimeImmutable::createFromFormat' => $immutable->format(DATE_ATOM), ]);

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