PHP에서 MySQL 데이터베이스 및 세션 대화 상자를 작동하는 방법

//////使用MySQL保存会话首先要创建session表：
<?php
$hostname_login = "localhost"; // Server address
$username_login = "root"; // User name 
$password_login = ""; // Password
//
$data_name = "session"; // Database name
$login = mysql_pconnect($hostname_login, $username_login, $password_login) or trigger_error(mysql_error(),E_USER_ERROR); 
$sql="SHOW DATABASES LIKE &#39;".$data_name."&#39;"; // If it is exist
if($rs_table=mysql_query($sql,$login)) { 
 if($rs_value=mysql_fetch_array($rs_table)) { 
  echo "数据库已经存在！\n!";
  exit(); 
 } 
}
$sql="CREATE DATABASE $data_name";  
mysql_query($sql); // Crate database
echo "数据库创建成功！\n"; 
mysql_select_db($data_name, $login);
$sql="CREATE TABLE `sessions` ( 
`SessionKey` varchar(32) NOT NULL default &#39;&#39;, 
`SessionArray` blob NOT NULL, 
`SessionExpTime` int(20) unsigned NOT NULL default &#39;0&#39;, 
PRIMARY KEY (`SessionKey`), 
KEY `SessionKey` (`SessionKey`) 
) ENGINE=MyISAM DEFAULT CHARSET=utf8"; //新建数据库 sql语句
mysql_query($sql);
echo "成功新建数据库表！";
?>