PHP+MySQL选择数据库

一 代码

<?php
$host = "127.0.0.1";     
$userName = "root";    
$password = "root";     
$dbName = "db_database13";   
$connID = mysql_connect($host, $userName, $password);   
if(mysql_select_db($dbName, $connID)){    
    echo "数据库选择";
}else{
    echo "数据库选择失败";
}
?>

 

二 运行结果