我可以同时包含MySQL和MySQLi数据库连接文件吗？-CanIincludingbothMySQLandMySQLidatabaseconnectionfiles?

There is nothing stopping you from using both, but were I you I would choose one type of connection and go along with it. Mixing can be confusing not only for other people who read your code but also your future self.

没有什么可以阻止你使用它们,但我是你,我会选择一种类型的连接,并与它一起使用。混音不仅会让其他阅读代码的人感到困惑,也会混淆你未来的自我。

You can use both of them. However this does not mean you should. You should not use 2 connections. For multiple reasons:

您可以同时使用它们。但这并不意味着你应该这样做。你不应该使用2个连接。出于多种原因:

• Mysql is deprecated as of PHP 5.5.0, and will be removed in the future..

从PHP 5.5.0开始,不推荐使用Mysql,将来会删除它。

• Multiple database connections and more files which means performance issues.

多个数据库连接和更多文件,这意味着性能问题。

• It's very confusing to work with 2 different connections while it's not needed at all.

使用2个不同的连接时非常困惑,而根本不需要它。