我正在尝试编写一个表单将一些数据插入到mysql数据库中，并且我填写表单本身。我尝试提交表单，当表单提交但不显示数据库中的任何数据时，我的代码是：
<!Doctype html>
<html>
<head>
<title>Form</title>
<meta charset="utf-8">
<link rel="stylesheet" type="text/css" href="vendors/bootstrap/css/bootstrap.css">
<script type="text/javascript" src="vendors/bootstrap/js/bootstrap.js"></script>
<script type="text/javascript" src="vendors/js/jquery.js"></script>
</head>
<body>
<div class="container">
<h1>Contact Form</h1>
<form method="post" action="form_process.php" class="form-horizontal" role="form">
<div class="form-group">
<label for="name" class="control-label col-sm-2">Name</label>
<div class="col-sm-5">
<input type="text" name="name" id="name" class="form-control" placeholder="Your name" required >
</div>
</div>
<div class="form-group">
<label for="email" class="control-label col-sm-2">E-mail Address</label>
<div class="col-sm-5">
<input type="email" name="email" id="email" class="form-control" placeholder="Your E-mail" required >
</div>
</div>
<div class="form-group">
<label for="subject" class="control-label col-sm-2">Subject</label>
<div class="col-sm-5">
<input type="text" name="subject" id="subject" class="form-control" placeholder="Your subject" required>
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-2">Select your Gender </label>
<div class="col-sm-5">
<select class="form-control" name="gender" required>
<option value="">your Gender </option>
<option value="male">Male</option>
<option value="female">Female</option>
</select>
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-2">Skills</label>
<div class="col-sm-5">
<label class="checkbox-inline"><input type="checkbox" name="skill1" value="html">HTML</label>
<label class="checkbox-inline"><input type="checkbox" name="skill2" value="php">PHP</label>
<label class="checkbox-inline"><input type="checkbox" name="skill3" value="javascript">JAVASCRIPT</label>
<label class="checkbox-inline"><input type="checkbox" name="skill4" value="css">CSS</label>
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-2">Select your country</label>
<div class="col-sm-5">
<select class="form-control" name="country">
<option value="">Select your country</option>
<option value="russia">Russia</option>
<option value="usa">USA</option>
<option value="uk">UK</option>
</select>
</div>
</div>
<div class="form-group">
<label for="comments" class="control-label col-sm-2">Comments</label>
<div class="col-sm-5">
<textarea type="text-area" name="comments" id="comments" rows="5" class="form-control"></textarea>
</div>
</div>
<div class="form-group">
<div class="col-sm-5 col-sm-offset-2">
<input type="submit" name="submit" class="btn btn-default btn-block" value="submit form">
</div>
</div>
</form>
</div>
</body>
</html>
这是我的form_process.php
<?php
include 'include/connection.php';
if (isset($_POST['submit'])) {
$name = strip_tags($_POST['name']);
$email = strip_tags($_POST['email']);
$subject = htmlspecialchars($_POST['subject']);
$gender = $_POST['gender'];
$country = $_POST['country'];
$comments = trim(htmlspecialchars($_POST['comments']));
$skill1 = $_POST['skill1'] = '';
$skill2 = $_POST['skill2'] = '';
$skill3 = $_POST['skill3'] = '';
$skill4 = $_POST['skill4'] = '';
$query = "INSERT INTO `php_course`.`comments` (`id`, `name`, `email_address`, `subject`, `gender`, `skill1`, `skill2`, `skill3`, `skill4`, `country`, `comments`) VALUES (NULL, '$name', '$email', '$subject', '$gender', '$skill1', '$skill2', '$skill3', '$skill4', '$country', '$comments') ";
$query = mysqli_query($con,$query);
mysqli_close($con);
}
?>
这是一个新的工作
<?php
include 'include/connection.php';
if (isset($_POST['submit'])) {
$name = mysqli_real_escape_string($con,strip_tags($_POST['name']));
$email = mysqli_real_escape_string($con,strip_tags($_POST['email']));
$subject = mysqli_real_escape_string($con,htmlspecialchars($_POST['subject']));
$gender = $_POST['gender'];
$country = $_POST['country'];
$comments = mysqli_real_escape_string($con,trim(htmlspecialchars($_POST['comments'])));
$skill1 = isset($_POST['skill1']) ? $_POST['skill1'] : '';
$skill2 = isset($_POST['skill2']) ? $_POST['skill2'] : '';
$skill3 = isset($_POST['skill3']) ? $_POST['skill3'] : '';
$skill4 = isset($_POST['skill4']) ? $_POST['skill4'] : '';
$query = "INSERT INTO comments (id, name, email_address, subject, gender, skill1, skill2, skill3, skill4, country, comments) VALUES (NULL,'$name','$email', '$subject', '$gender', '$skill1', '$skill2', '$skill3','$skill4', '$country', '$comments') ";
$query = mysqli_query($con,$query);
mysqli_close($con);
}
?>
我仍然想知道旧的有什么问题：
答案 0 :(得分：-1)
在form_process.php
中<?php
Include("connection.php");
?>
我认为连接文件未正确包含在内。
首先尝试打印变量。