Simple example of php connecting to database

Friends who have just learned PHP often don’t know how to connect to the database. This article gives a simple example to help you easily create a database connection. Friends in need, come and take a look.

Demo code:

<?php
/**
 * php 连接数据库
 * site bbs.it-home.org
**/
 $mydbhost  ="localhost";  //配置主机  
 $mydbuser  ="root";   //数据库用户  
 $mydbpw   ="123456"; //数据库密码  
 $mydbname  ="testdb";  //数据库名  
   
 //$mydbcharset ="GBK";  
   
 $conn=mysql_connect($mydbhost,$mydbuser,$mydbpw) or die ("服务器连接错误".mysql_error());  
 mysql_select_db($mydbname,$conn);  
 mysql_query("SET NAMES 'utf8'");  
 date_default_timezone_set ('PRC');   
 $addtime=date("y-m-d H:i:s");  
   
 //定义常量  
 define('ALL_PS',"nkfwe24tot");//二次加密，密码字符  
 //echo md5("admin".ALL_PS);  
   
 //信息提示函数  
 function showmsg($text,$urlstr="")  
 {  
  if($urlstr){  
   echo '';  
   exit;  
  }  
  else {  
   echo "";  
   exit;  
  }   
}  
?>

If the above code is already a piece of cake for you, then you can read: php mysql database operation class php database operation class (implementing table additions, deletions, modifications, querying, fetching rows, querying multiple pieces of data, etc.) A simple mysql database class Refer to how others write database operation classes, and try to encapsulate a PHP database operation class yourself.