无法从网站表单填充 wampserver 数据库？

Question

每当我在我的网站中填写表单并按下提交按钮时，它不会将数据从这里推送到我创建的 wampserver/phpmyadmin 数据库中？

这是我第一次这样做，我认为它几乎可以正常工作，因为它在运行时没有给我任何错误。但我无法指出我哪里出错了，我猜它很容易被我忽略

这是php代码：

<?php
function renderform($firstname, $lastname, $emailaddress, $contactnumber, $query, $error)
{
    ?><?php
    // connect to the database
    include('connect.php');
    // check if the form has been submitted. If it has, start to process the form and save it to the database
    if (isset($_POST['Submit'])) {
        // get form data, making sure it is valid
        $firstname = mysqli_real_escape_string($connection, htmlspecialchars($_POST['FirstName']));
        $lastname = mysqli_real_escape_string($connection, htmlspecialchars($_POST['LastName']));
        $emailaddress = mysqli_real_escape_string($connection, htmlspecialchars($_POST['EmailAddress']));
        $contactnumber = mysqli_real_escape_string($connection, htmlspecialchars($_POST['ContactNumber']));
        $query = mysqli_real_escape_string($connection, htmlspecialchars($_POST['Query']));
        // check to make sure both fields are entered
        if ($firstname == '' || $lastname == '' || $emailaddress == '' || $contactnumber == '' || $query == '') {
            // generate error message
            $error = 'ERROR: Please fill in all required fields!';
            // if either field is blank, display the form again
            renderform($firstname, $lastname, $emailaddress, $contactnumber, $query, $error);
        } else {
            // save the data to the database
            $query = ("INSERT INTO contact SET FirstName='$firstname', LastName='$lastname', EmailAddress='$emailaddress', ContactNumber='$contactnumber', Query='$query' ");
            $data = mysqli_query($connection, $query) or die(mysqli_error($connection));
            // once saved, redirect back to the view page
            header("Location: contact.php");
        }
    } else {// if the form hasn't been submitted, display the form
            renderForm('', '', '', '', '', '');
    }
}

?>

收集的结果应该显示到 wampserver/phpmyadmin 数据库中，我最终会将其放入云主机中..

Answer 1

如果你的变量不为空，你可以使用参数传递值：

$query = $this->dbConnect->prepare("INSERT INTO contact SET FirstName=?, LastName=?, EmailAddress=?, ContactNumber=?");
$query->bind_param('ssss', $firstname, $lastname, $email, $contact_no);
$query->execute();

确保您可以回显您的变量以确保您的表单正在提交值。