PHP和DB连接被mysqli中的mysqli取代

Question

$con = mysql_connect("localhost", "root", "");  
$db = mysql_select_db("dbname", $con);
$q = "select*from tablename";
$qry = mysql_query($q);

能帮我将这个mysql查询转换成mysqli吗？

Answer 1

使用方式

// mysqli_connect(host,username,password,dbname,port,socket);
$con = mysqli_connect("localhost", "root", "", "your_db");

// mysqli_select_db(connection, dbname);
$db = mysqli_select_db($con, "dbname");

$q = "select*from tablename";

// mysqli_query(connection,query,resultmode);
$qry = mysqli_query($con, $q);

请参阅下面的文档

1. PHP Mysqli

2. w3schools Mysqli