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Detailed explanation of the steps to connect the ThinkPHP framework PDO to the database

php中世界最好的语言Original: 2018-05-17 14:48:072237browse

This time I will bring you a detailed explanation of the steps of ThinkPHP framework PDOConnecting to the database, and what are the precautions for connecting the ThinkPHP framework PDO to the database. The following is a practical case, let's take a look.

The examples in this article describe the ThinkPHP framework’s connection to database operations based on the PDO method. Share it with everyone for your reference, the details are as follows:

One code

1. Modify the config.php file

<?php
return array(
  &#39;DB_TYPE&#39;=> &#39;pdo&#39;,
  // 注意DSN的配置针对不同的数据库有所区别
  &#39;DB_DSN&#39;=> &#39;mysql:host=localhost;dbname=db_database30&#39;,
  &#39;DB_USER&#39;=>&#39;root&#39;,
  &#39;DB_PWD&#39;=>&#39;root&#39;,
  &#39;DB_PREFIX&#39;=>&#39;think_&#39;,
  // 其他项目配置参数………
  &#39;APP_DEBUG&#39; => true,     // 关闭调试模式
  &#39;SHOW_PAGE_TRACE&#39;=>true,
);
?>

2. Create the controller

<?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 = M(&#39;User&#39;);              // 实例化模型类,参数数据表名称，不包含前缀
    $select = $db->select();           // 查询数据
    $this->assign(&#39;select&#39;,$select);       // 模板变量赋值
    $this->display();              // 指定模板页
  }
  public function type(){
    $dba = M(&#39;Type&#39;);              // 实例化模型类,参数数据表名称，不包含前缀
    $select = $dba->select();          // 查询数据
    $this->assign(&#39;select&#39;,$select);       // 模板变量赋值
    $this->display(&#39;type&#39;);         // 指定模板页
  }
}
?>

3. Create the entry file

<?php
define(&#39;THINK_PATH&#39;, &#39;../ThinkPHP&#39;);    //定义ThinkPHP框架路径(相对于入口文件)
define(&#39;APP_NAME&#39;, &#39;App&#39;);       //定义项目名称
define(&#39;APP_PATH&#39;, &#39;./App&#39;);        //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
?>

4. Create the template file

<!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=&#39;select&#39; id=&#39;user&#39; >
 <tr class="content">
  <td bgcolor="#FFFFFF"> {$user.id}</td>
  <td bgcolor="#FFFFFF"> {$user.user}</td>
  <td bgcolor="#FFFFFF"> {$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=&#39;select&#39; id=&#39;type&#39; >
 <tr class="content">
  <td bgcolor="#FFFFFF"> {$type.id}</td>
  <td bgcolor="#FFFFFF"> {$type.typename}</td>
  <td bgcolor="#FFFFFF"> {$type.dates}</td>
 </tr>
 </volist>
</table>
</body>
</html>

Second run Result

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to php Chinese website Other related articles!

Detailed explanation of the steps to connect the ThinkPHP framework PDO to the database

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