Question

我正在尝试使用php登录到SQLite数据库。我想将登录页面中输入的“用户名”和“密码”与数据库中存储的用户名和密码进行比较，如果匹配，则重定向到新页面（welcome.php）。我的代码是：

<?php
class MyDB extends SQLite3 {
  function __construct() {
     $this->open('test.db');
  }
}
$db = new MyDB();
if(!$db) {
  echo $db->lastErrorMsg();
} else {
  echo "Opened database successfully\n";
}
include('config.php');
$username = $_POST['Username'];
$password = $_POST['Password'];
$db = new PDO('sqlite:db/test.db');
$stmt = $db->prepare("SELECT * FROM login where username='$username' &&   password='$password]'");
$stmt->execute(array($username, $password));
if($stmt->fetchAll()){
    ?>
    <script type="text/javascript">
    window.location="welcome.php";
    </script>
    <?php
}
else {
    ?>
    <script type="text/javascript">
    alert("incorrect username or password");
    </script>
    <?php
}

运行此代码后，我得到一个空白的validate.php页面，其中显示“成功打开数据库”。 apache服务器中的错误日志文件显示以下消息：

[Fri Sep 07 12:13:17.037251 2018] [:error] [pid 16529] [client      192.168.0.110:44534] PHP Fatal error:  Uncaught PDOException: SQLSTATE[HY000]   [14] unable to open database file in /var/www/html/validate.php:16\nStack  trace:\n#0 /var/www/html/validate.php(16):  PDO->__construct('sqlite:db/test....')\n#1 {main}\n  thrown in /var/www  /html/validate.php on line 16, referer: http://192.168.0.110/

谁能告诉我我要去哪里错了？

PHP致命错误：未捕获的PDOException：SQLSTATE [HY000]

0 个答案: