📜  MySQLi-选择数据库

📅  最后修改于: 2020-11-27 06:11:41             🧑  作者: Mango


与MySQLi服务器建立连接后,需要选择要使用的特定数据库。这是因为MySQLi Server可能有多个数据库可用。

句法

bool mysqli_select_db( db_name, connection );
Sr.No. Parameter & Description
1

db_name

Required – MySQLi Database name to be selected

2

connection

Optional – if not specified, then last opened connection by mysqli_connect will be used.

这是显示如何选择数据库的示例。

Connecting MySQLi Server
   

   
      ';
         $conn = mysqli_connect($dbhost, $dbuser, $dbpass);
   
         if(! $conn ) {
            echo 'Connected failure
'; } echo 'Connected successfully
'; mysqli_select_db( 'TUTORIALS' ); //Write some code here mysqli_close($conn); ?>

如果成功连接并选择了数据库,则示例输出应如下所示:

Connected successfully