ThinkPHP连接数据库操作示例【基于DSN方式和数组传参的方式】

?php
define('THINK_PATH', '../ThinkPHP');    //定义ThinkPHP框架路径(相对于入口文件)
define('APP_NAME', 'App');       //定义项目名称
define('APP_PATH', './App');        //定义项目路径
require(THINK_PATH."/ThinkPHP.php");  //加载框架入口文件
App::run();               //实例化一个网站应用实例
?>

?php
header("Content-Type:text/html; charset=utf-8");  //设置页面编码格式
class IndexAction extends Action{
  public function index(){
    $db_dsn="mysql://root:root@127.0.0.1:3306/db_database30";    //定义DSN
    $db = new Db();                       //执行类的实例化
    $conn=$db->getInstance($db_dsn);               //连接数据库，返回数据库驱动类
    $select=$conn->query('select * from think_user');      //执行查询语句
    $this->assign('select',$select);       // 模板变量赋值
    $this->display();              // 指定模板页
  }
  public function type(){
    $dsn = array(
      'dbms'   => 'mysql',
      'username' => 'root',
      'password' => 'root',
      'hostname' => 'localhost',
      'hostport' => '3306',
      'database' => 'db_database30'
    );
    $db = new Db();
    $conn=$db->getInstance($dsn);              //连接数据库，返回数据库驱动类
    $select=$conn->query('select * from think_type');      //执行查询语句
    $this->assign('select',$select);       // 模板变量赋值
    $this->display('type');             // 指定模板页
  }
}
?>

!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
html xmlns="http://www.w3.org/1999/xhtml">
head>
meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
title>用户信息输出/title>
link href="__ROOT__/Public/Css/style.css" rel="external nofollow" rel="external nofollow" rel="stylesheet" type="text/css" />
/head>
body>
table width="405" border="1" cellpadding="1" cellspacing="1" bgcolor="#99CC33" bordercolor="#FFFFFF">
 tr>
  td colspan="3" bgcolor="#FFFFFF" class="title" align="center">用户信息/td>
 /tr>
 tr class="title">
  td bgcolor="#FFFFFF" width="44">ID/td>
  td bgcolor="#FFFFFF" width="120">名称/td>
  td bgcolor="#FFFFFF" width="223">地址/td>
 /tr>
 volist name='select' id='user' >
 tr class="content">
  td bgcolor="#FFFFFF">nbsp;{$user.id}/td>
  td bgcolor="#FFFFFF">nbsp;{$user.user}/td>
  td bgcolor="#FFFFFF">nbsp;{$user.address}/td>
 /tr>
 /volist>
/table>
/body>
/html>

!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
html xmlns="http://www.w3.org/1999/xhtml">
head>
meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
title>类别输出/title>
link href="__ROOT__/Public/Css/style.css" rel="external nofollow" rel="external nofollow" rel="stylesheet" type="text/css" />
/head>
body>
table width="405" border="1" cellpadding="1" cellspacing="1" bgcolor="#99CC33" bordercolor="#FFFFFF">
 tr>
  td colspan="3" bgcolor="#FFFFFF" class="title" align="center">类别输出/td>
 /tr>
 tr class="title">
  td bgcolor="#FFFFFF" width="44">ID/td>
  td bgcolor="#FFFFFF" width="120">类别名称/td>
  td bgcolor="#FFFFFF" width="223">添加时间/td>
 /tr>
 volist name='select' id='type' >
 tr class="content">
  td bgcolor="#FFFFFF">nbsp;{$type.id}/td>
  td bgcolor="#FFFFFF">nbsp;{$type.typename}/td>
  td bgcolor="#FFFFFF">nbsp;{$type.dates}/td>
 /tr>
 /volist>
/table>
/body>
/html>