In PHP, after establishing a connection with the MySQL server, we need to determine the database to be connected. At this time, we can use the mysql_select_db function. This function is used to select the database that needs to be operated. Friends in need can refer to Next
mysql_select_db introduction
mysql_select_db function has two parameters:
mysql_select_db(database,connection)
If successful, the function returns true. If failed, returns false.
Parameters | Description |
---|---|
database | Required. A database needs to be selected. |
connection | Optional. MySQL connection. If this parameter is not set, it indicates that the previous mysql database connection is used. |
mysql_select_db instance
<?php $host="mysql153.secureserver.net"; $uname="root"; $pass="password"; $connection= mysql_connect ($host, $uname, $pass); if (!$connection) { die ("mysql连接失败"); } $result=mysql_select_db ("manongjc"); if (! $result) { die ("没有选择任何数据库"); } echo "数据库manongjc已经选择,可以使用该数据库了"; ?>
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