phpstudy连接数据库代码

<?php

$hostName = "localhost";

$usrName = "root";

$passWord = "root";

$port = "3306";

$dbname = "flyingman";

$content = mysqli_connect($hostName,$usrName,$passWord,$dbname,$port);

mysqli_set_charset($content,'utf-8');

if(!$content){

    die("connect failed!：".mysqli_connect_error());

}else{

    echo "connect success!";

}

mysqli_close($content);

header("content-type:text/html;charset=utf-8");