数据库配置文件

db_connect.php

<?php
/**
 * 数据库配置文件
 * Created by PhpStorm.
 * User: edwin
 * Date: 2017/6/22
 * Time: 19:44
 */
require 'db_config.php';

$mysqli = new mysqli(DB_HOST, DB_USERNAME, DB_PASSWORD, DB_NAME); //链接数据库
if ($mysqli->connect_errno) {
    printf("Connect failed: %s\n", $mysqli->connect_error . '...');
    exit();
} else {
    printf("连接成功...");
    $mysqli->set_charset("utf8");
//    var_dump($mysqli->get_charset());

}