mysqli 持久连接
简而言之，是否有某种 mysqli_pconnect 用于高使用率的 PHP &MySQL 服务器，还是我需要坚持使用未改进的 mysql?如果是这样，他们为什么要删除它?
In short, is there some sort of mysqli_pconnect for high-usage PHP & MySQL servers, or do I need to stick with mysql unimproved? And if so, why did they remove it?
推荐答案
对此的支持是在 PHP 5.3 中引入的.对于此之前的版本，PDO 和 - 上帝保佑 - mysql 扩展是唯一的选择.
Support for this was introduced in PHP 5.3. For versions before this, PDO and – god forbid – the mysql extension are the only options.
引用手册:
与mysql扩展不同，mysqli没有提供单独的开启持久连接的功能.要打开持久连接，您必须在连接时将 p: 添加到主机名.
Unlike the mysql extension, mysqli does not provide a separate function for opening persistent connections. To open a persistent connection you must prepend p: to the hostname when connecting.
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