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php - 参数错误，SQLSTATE[HY093]: Invalid parameter number: parameter was not defined

问题描述

所以我得到 SQLSTATE[HY093]: Invalid parameter number: parameter was not defined，当我尝试提交我的表单时。我有一个带有 index.php 文件的 reservations 文件夹，该文件有一个包含文件作为 reservations.html.php，其中包含 html 中的表单。

因此，我在reservations.html.php 中的表单在填写并在名字中有一个值时，将尝试将表单中的所有值发布到我在mysql 中创建的reservations 表中。下面是我在 index.php 中的代码

<?php

// Edit or Replace this try/catch statement to work with the current PHT configuration
include '../includes/db.inc.php';

// Modify the If statement so the try only runs if the First Name field has been submitted AND the honeypot field is empty ''
if (isset($_POST['myfname'])) {
    $myFName = $_POST['myfname'];
    $myTour = $_POST['tour'];
    $myLName = $_POST['mylname'];
    $myEmail = $_POST['myemail'];
    // If the if statement is true, save each form field value as a variable. These variable values will be used in the thank you page.

    // And run the try/catch to attempt to insert data in the database. Modify the INSERT statement to write all the form filed values (except the honeypot) to the database.
    try
    {
        $sql = 'INSERT INTO reservations SET
          tour = :tour,
          fname = :fname,
          lname = :lname,
          email = :email';
        $s = $pdo->prepare($sql);
        $s->bindValue(':tour', $myTour);
        $s->bindValue(':myfname', $myFName);
        $s->bindValue(':mylname', $myLName);
        $s->bindValue(':myemail', $myEmail);
        $s->execute();
    }
    catch (PDOException $e)
    {
        $error = 'Error adding submitted joke: ' . $e->getMessage();
        include '../includes/error.html.php';
        exit();
    }
    // load the thank you page after the INSERT runs
    include 'success.html.php';
    // Add an else to load the initial page if the initial (line 19) if statement is false
} else {
    include 'reservations.html.php'; //Modify this to include the initial file for this folder
}

标签： phpmysqlformsparameters

解决方案

您的插入语句的语法已关闭，并且似乎是插入和更新之间的混合。试试这个版本：

$sql = "INSERT INTO reservations (tour, fname, lname, email) ";
$sql .= "VALUES (:tour, :fname, :lname, :email)";
$stmt = $pdo->prepare($sql);
$stmt->bindParam(':tour', $myTour, PDO::PARAM_STR);
$stmt->bindParam(':fname', $myFName, PDO::PARAM_STR);
$stmt->bindParam(':lname', $myLName, PDO::PARAM_STR);
$stmt->bindParam(':email', $myEmail, PDO::PARAM_STR);
$stmt->execute();
$stmt->close();

为了清楚起见，SQL 插入语句需要以下内容：

  • INSERT INTO关键字，后跟列列表
  • 然后是一个 VALUES 子句，后跟一个包含要插入的值的元组

还有一个INSERT INTO ... SELECT，它使用 select 语句来提供值，但您没有使用这种形式。

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