Enlightenment is not always a single moment of connection, where the answers to all of your questions become known in an instant.
觉悟并不总是一个单一的连接瞬间,在其中你所有的问题立即获得知晓。
Unfortunately, not every database supports transactions, so PDO needs to run in what is known as "auto-commit" mode when you first open the connection.
不幸的是,并不是每种数据库都支持事务,所以当第一次打开连接时,P DO需要在所谓的“自动提交(auto - commit)”模式下运行。
INVALID state indicates that the packet is not associated with any known stream or connection and it may contain faulty data or headers.
INVALID状态指出该信息包与任何已知的流或连接都不相关联,它可能包含错误的数据或头。
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