PHP development simple post bar connection database function

Public configuration file config.php

<?php
	header("Content-type:text/html;charset=utf-8");
	define('HOST','127.0.0.1');
	define('USERNAME','root');
	define('PASSWORD','root');
?>

Program explanation:

  • Settings Determine the encoding format of the file

  • Define the host name, database name, and password as constants

Public connection database file connect.php

<?php 
require_once('config.php');
$conn = mysqli_connect(HOST,USERNAME,PASSWORD);//数据库帐号密码为安装数据库时设置
if(mysqli_errno($conn)){
echo mysqli_errno($conn);
exit;
}
mysqli_select_db($conn,"tieba");
mysqli_set_charset($conn,'utf8'); 
?>

Program explanation:

  • ##Introduced the configuration file

  • Connect to the database, select the tieba database, and set the encoding format to utf8

In subsequent projects, wherever you want to connect to the database, you only need to introduce the connect.php file.

Continuing Learning
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<?php header("Content-type:text/html;charset=utf-8"); define('HOST','127.0.0.1'); define('USERNAME','root'); define('PASSWORD','root'); ?>
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