在PHP中关闭自动数据库连接?
I have following in my config.php file for one of my web app.
//db settings
$host = 'localhost'; //database location
$user = 'example'; //database username
$pass = 'example12'; //database password
$db_name = 'example'; //database name
//create db connection
$link = mysql_connect($host, $user, $pass);
mysql_select_db($db_name);
//sets encoding to utf8
mysql_query("SET NAMES utf8");
I am including config.php
in all pages of my application at top (1st line of code).
I want to know that will PHP/MYSQL maintain connection open and close automatically or I need to explicitly call them. Connection is opening by itself, as I am doing all db based tasks properly. But not closing connection anywhere, this is a high traffic website.
Please correct me if I am wrong anywhere.
Thanks!
我的config.php文件中有以下内容供我的某个网络应用使用。 p>
// db settings
$ host ='localhost'; //数据库位置
$ user ='example'; //数据库用户名
$ pass ='example12'; //数据库密码
$ db_name ='example'; //数据库名称
//创建数据库连接
$ link = mysql_connect($ host,$ user,$ pass);
mysql_select_db($ db_name);
//将编码设置为utf8
mysql_query(“SET NAMES utf8”);
code> pre>
我在应用程序的所有页面中都包含 config.php code>(第1行) 代码)。 p>
我想知道PHP / MYSQL会自动保持连接是否打开和关闭,或者我需要显式调用它们。 连接是自行打开的,因为我正在执行所有基于数据库的任务。 但不是在任何地方关闭连接,这是一个流量很大的网站。 p>
如果我在任何地方都错了,请纠正我。 p>
谢谢! p>
div>
The connection will close automatically upon termination of the script.
The notes on mysql_connect()
state that:
The link to the server will be closed as soon as the execution of the script ends, unless it's closed earlier by explicitly calling
mysql_close()
.