Question

我已经用完了选项，现在我只是盯着我的屏幕，希望我的代码能够开始工作，尽管我没有改变它......任何帮助都会受到赞赏。我是一个新手......第一个PHP项目，所以要善良。我用Google搜索并搜索了这个论坛，似乎无法找到适合我的解决方案。

我正在尝试将表单中的数据插入到数据库中。这是代码：

<?php
error_reporting(E_all);
ini_set('display_errors', 1);
include $_SERVER['DOCUMENT_ROOT'] . 'rstools/inc/helpers.inc.php';
if(!isset($_POST['reg'])){
    include 'form.html.php';
}
else {
if($_POST['firstname'] == '')
{
    $registerError = 'All fields are required. You did not enter your first         name.';
    include 'form.html.php';
}
elseif($_POST['lastname'] == '')
{
    $registerError = 'All fields are required. You did not enter your last name.';
    include 'form.html.php';
}
elseif($_POST['phone'] == '')
{
    $registerError = 'All fields are required. You did not enter your phone number.';
    include 'form.html.php';
}
elseif($_POST['email'] == '')
{
    $registerError = 'All fields are required. You did not enter your  e-mail address.';
    include 'form.html.php';
}
elseif($_POST['ward'] == '')
{
    $registerError = 'All fields are required. You did not select your ward from the list.';
    include 'form.html.php';
}
else
{
    try
    {   
// This include statement does not work. $pdo is undefined if used.
//      include '/rstools/inc/db.inc.php';
// The code from db.inc.php is show below without the leading <?php
// When this code is included here, it works perfectly.
    $dsn = 'mysql:host=localhost;dbname=learnpkp_rstools;charset=utf8';
    $username = 'user';
    $pwd = 'pwd';
    try
    {
    $pdo = new PDO($dsn, $username, $pwd);
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    }
    catch (PDOException $e)
    {
    $error = 'Unable to connect to the database server.' . $e;
    include 'error.html.php';
    exit();
    }
// End of db.inc.php file text
    $sql = "INSERT INTO santashelpersvolunteers (firstname, lastname, ward, phone, email) 
                VALUES (:firstname, :lastname, :ward, :phone, :email)";
    $stmt = $pdo->prepare($sql);
    $stmt->bindValue(':firstname',$_POST['firstname']);
    $stmt->bindValue(':lastname',$_POST['lastname']);
    $stmt->bindValue(':ward',$_POST['ward']);
    $stmt->bindValue(':phone',$_POST['phone']);
    $stmt->bindValue(':email',$_POST['email']);
    $stmt->execute();
    }
    catch (PDOException $e)
    {
    $error = 'Error during registration: ' . $e->getMessage();
    include 'error.html.php';   
    }
    $name = $_POST['firstname'] . ' ' . $_POST['lastname'];
    include 'thankyou.html.php';
}
}

当脚本运行时，我没有收到任何错误（即，error.html.php没有显示）。我只看到一个白色的网页... @MichaelBerkowski发现这是一个范围问题...上面添加了完整的代码：

我无法弄清楚范围问题。我没有使用任何功能。基本上，代码设置为检查表单是否已提交，如果没有，则显示包含表单的页面。然后，如果它已被提交，它会执行一些简单的错误检查，然后将表单数据插入到数据库中。也许我这样做错了......

Answer 1

a）使用套接字，而不是localhost;

b）使用模型：

try{
...
} catch(PDOExeption $e){
...
} catch(Exeption $e){
...
} finally {
...
    // check the connection status
}

因为你无法确定exeption的类型

Answer 2

出于某种原因，当我使用include添加一段代码来访问数据库时，$ pdo将是未定义的。所以我创建了一个新文件“insertvolunteer.inc.php”，在该文件中我添加了数据库访问命令和SQL命令来插入数据。然后我include在我的流程中的那个单个文件，它似乎工作。

不是一个很好的解决方案，因为每次调用数据库都需要一个单独的.inc.php文件......但是它有效......

感谢大家的投入。

需要帮助调试PHP准备语句

2 个答案: