will opening and closing a mysql connection twice slow down my website significantly more than doing it just once?

Question

I'd like to get an idea of how much of an effect does opening and closing a mysql connection have on the performance of a website. Currently, my PHP website will open and close a mysql connection in two different sections of the code. It is simply much easier for me to leave them separate as they are. I am just worried that I am slowing down my website by a lot. Is my fear unfounded? Or should I stop being lazy and try to cram all my code inside one open and then closed mysql connection instead of opening and closing and then opening and closing a mysql connection twice?

Answer 1

是的...它的效果...不会很大...但是会引起注意的..我是根据我的经验告诉您的...我已经做了两个网络门户....在两种情况下都没有连接顺序打开并强制处理。...结果是每次客户端请求必须发送到服务器并等待服务器响应...在这种情况下，如果您使用的是.net技术，则更喜欢使用数据集...因为它不需要每次都打开数据库连接并将其关闭....它只是将所需（查询的）数据库的副本保存在数据集中并执行操作...谢谢...

Answer 2

Opening and closing mysql connection is not a problem? Speed will become slow when you are using a lot of queries or queries in loop.

For more information see this How to increase speed