Manual do PHP Apêndices Migrating from PHP 5.4.x to PHP 5.5.x New Methods New Classes and Interfaces Other changes to extensions New Methods MySQLi mysqli::begin_transaction() mysqli::release_savepoint() mysqli::savepoint() Intl IntlDateFormatter::formatObject() IntlDateFormatter::getCalendarObject() IntlDateFormatter::getTimeZone() IntlDateFormatter::setTimeZone()