Question

我有以下数据库连接的代码行，但是我只想使用我的include（“config.php”）而不是这么长的代码行，我将如何去做

try {
    $dbh = new PDO('mysql:host=localhost;dbname=lms;charset=UTF-8', 'root', 'password');
}
catch (PDOException $e) {
    die('unable to connect to database ' . $e->getMessage());
}    

// create LM object, pass in PDO connection
$lm = new lazy_mofo($dbh);

Answer 1

只需创建一个config.php文件，例如考虑将此文件存储在web根目录（/var/www/）中，然后config.php的内容如下：

<?php

    try {
        $dbh = new PDO('mysql:host=localhost;dbname=lms;charset=UTF-8', 'root', 'password');
    }
    catch (PDOException $e) {
        die('unable to connect to database ' . $e->getMessage());
    }    

    // create LM object, pass in PDO connection
    $lm = new lazy_mofo($dbh);

?>

然后在您的其他PHP脚本中使用include函数：

<?php

    include '/var/www/config.php';
    ...

现在，在PHP脚本中，您可以访问$lm对象和$dbh对象。

Answer 2

例如include("config.inc.php")和config.inc.php：

<?php
try {
    $dbh = new PDO('mysql:host=localhost;dbname=lms;charset=UTF-8', 'root', 'password');
}
catch (PDOException $e) {
    die('unable to connect to database ' . $e->getMessage());
}
$lm = new lazy_mofo($dbh); 
?>

Answer 3

你可以在你的包含文件中创建一个db包装器类，并且对它非常懒惰=）

    define('DB_TYPE', 'mysql');
    define('DB_HOST', 'localhost');
    define('DB_NAME', 'lms');
    define('DB_USER', 'root');
    define('DB_PASS', 'password');

    class Database{

        public function __construct() {

            $db = new PDO(DB_TYPE.':host='.DB_HOST.';dbname='.DB_NAME, DB_USER, DB_PASS);
            $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
        }

    }

    $o = new Database();

Answer 4

我的连接PDO

  define("DB_HOST", "localhost");
  define("DB_USER", "root");
  define("DB_PASS", "");
  define("DB_NAME", "db");

      try {

        $db = new PDO("mysql:host=" . DB_HOST . ";charset=utf8mb4;dbname=" . DB_NAME, DB_USER, DB_PASS);

        /* set the PDO error mode to exception */
        $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
        $db->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);                           

        //echo "Connected successfully"; 

      }

      catch(PDOException $e)    {

        echo "Connection failed: " . $e->getMessage();

      }

使用php配置文件连接数据库而不是PDO连接线

4 个答案: