关于PHP中 mysql_query()命令链接多次出现错误，求大神解决-PHP Tutorial-php.cn

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关于PHP中 mysql_query()命令链接多次出现错误，求大神解决

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Jun 20, 2016 pm 12:38 PM

只执行一个 mysql_query()语句时没有错误

两个都运行的话就出问题

运行 mysql_query()的代码在这，每一次运行完都会free掉，但是为什么还有会有错啊！！！！！

回复讨论(解决方案)

运行 mysql_query()的代码在这

select 方法中关闭了数据库连接（mysql_close()）
那么，再次执行 select 方法时，又是在哪执行数据库连接的呢？

一言惊醒梦中人啊，我一直以为我把connect写在M()里面了，重头看了一遍，原来是在入口文件那里写的。
顺便问一下mysql里面的connect是短链接还是长连接，现在我是把select里面的close删掉解决的，会不会影响网站性能啊

mysql_connect 是短连接
mysql_pconnect 是长连接

如果你把 mysql_connect 改为 mysql_pconnect 的话，相信你会遇到更多的麻烦！

哈哈，原来这样，我想我也不会用到长连接的

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