Detailed explanation of the steps to connect the ThinkPHP framework PDO to the database-PHP Tutorial-php.cn

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

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Release： 2023-03-26 11:42:01

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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,
);
?>

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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
  }
}
?>

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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
?>

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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>

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<!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>

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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!