新的类和接口 cURL CURLStringFile FileInfo finfo FTP FTP\Connection IMAP IMAP\Connection Intl IntlDatePatternGenerator LDAP LDAP\Connection LDAP\Result LDAP\ResultEntry PgSQL PgSql\Connection PgSql\Lob PgSql\Result PSpell PSpell\Config PSpell\Dictionary Reflection ReflectionFiber