PHP PDO数据库连接

嘿，伙计们，不知道我做错了什么，已经在stackoverflow上尝试了所有建议的想法，仍然没有解决错误，没有选择数据库

代码：

db_connect.php代码：

<?php   
  $host = "localhost";
  $db = "hotelDB";
  $dbuser = "hotelAuth";
  $password = "+_90-w4903nsdkfn";    

  // connecting to DB using PDO

  try {    
      $pdo = new PDO("mysql:host = {$host}; dbname = {$db}", "{$dbuser}", "{$password}");    
      $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);    
      $pdo->exec('SET NAMES "utf8"');    
  }
  catch(PDOException $e) {    
      $error = "Error Occured While Connecting TO Database: ".$e->getMessage();    
      include 'error.html.php';    
      exit();    
  }    

  // On successful connection include booking form.    
    $ack = "Secure Connection established.";    
?>

---

看起来您与数据库的连接是错误的，因为没有数据库的错误消息选择了创建表的位置。以下是如何连接PDO：

<?php

    $dbuser = "hotelAuth";
    $password = "+_90-w4903nsdkfn";

    // connecting to DB using PDO
    try{

            $dbPDO = new PDO('mysql:host=localhost;dbname=hotelDB', $dbuser, $password);
            $dbPDO->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
            $pdo->exec('SET NAMES "utf8"');
            echo "Connection was successful";

    } catch(PDOException $e){

            print "Error!: " . $e->getMessage() . "<br />";
            die();

    }

    // On successful connection include booking form.   
    $ack = "Secure Connection established.";

?>

同样适用于用户和密码，它们必须作为
$dbuser，$password
进行寻址。从
开始，包括“error.html.php”-您应该在错误处理程序中执行此操作，而不是在catch块中执行此操作。如果前面的注释不清楚，则PDO DSN连接字符串中不能有空格。它必须是mysql:host=$host；dbname=$db“
。PDO在第一个空格处停止解析，并使用默认值，这就是问题所在。请注意，
“{$dbuser}”
和
“{$password}”
被不必要地引用。这些只是方法参数，可以作为
$dbuser，$password
传递，不带任何引号。请注意
<?php

    $dbuser = "hotelAuth";
    $password = "+_90-w4903nsdkfn";

    // connecting to DB using PDO
    try{

            $dbPDO = new PDO('mysql:host=localhost;dbname=hotelDB', $dbuser, $password);
            $dbPDO->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
            $pdo->exec('SET NAMES "utf8"');
            echo "Connection was successful";

    } catch(PDOException $e){

            print "Error!: " . $e->getMessage() . "<br />";
            die();

    }

    // On successful connection include booking form.   
    $ack = "Secure Connection established.";

?>