我有一个用户输入表单 (HTML)，它应该获取信息并通过 PHP 将其插入 MySQL 数据库。 PHP 显然执行并回显“您的注册已成功完成”。在数据库中创建了一条记录，但列为空白(我已从 PHP 代码中删除了我的服务器、数据库和密码)。
HTML:
<!DOCTYPE html>
<head>
<link rel="stylesheet" type="text/css" href="css/styles.css">
<title>User Portal</title>
</head>
<div class="inputContainer">
<header>
User Information Portal
</header>
<form action="php/userPost.php" method="post">
<label for=firstName">First Name</label>
<input type="text" id=firstName" name="fname">
<br><br>
<label for="lastName">Last Name</label>
<input type="text" id="lastName" name="lname">
<br><br>
<label for="eMail">Email</label>
<input type="text" id="eMail" name="email">
<br><br>
<label class="labelRole" for="userRole">Role -</label><br>
<input type="radio" id="userRole" name="role" value="Instructor"> Instructor
<input class="submitButton" type="submit" name="submit" value="Register">
</form>
</div>
</body>
PHP:
<?php
$sname = "server-name";
$uname = "username";
$pword = "password";
$dbname = "web_tech_test";
$conn = new mysqli($sname, $uname, $pword, $dbname);
if ($conn->connect_error) {
die("Connection failure: " . $conn->connect_error);
}
$fname = !empty($_POST['firstName']);
$lname = !empty($_POST['lastName']);
$email = !empty($_POST['eMail']);
$role = isset($_POST['userRole']);
$sql = "INSERT INTO users (first_name, last_name, email, role)
VALUES ('$fname', '$lname', '$email', '$role')";
if ($conn->query($sql) === TRUE) {
echo "Your registration has completed successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>
这会在数据库中创建一条新记录，但所有列都是空白的。知道为什么会发生这种情况吗？
最佳答案
$fname = !empty($_POST['firstName']);
$lname = !empty($_POST['lastName']);
$email = !empty($_POST['eMail']);
$role = isset($_POST['userRole']);
此代码返回一个 bool 值，而不是一个字符串值...
仅使用 !empty() 进行验证
示例
if(empty($_POST['eMail'])) {
die("Email cannot be empty");
}
关于PHP/MySQL 在数据库中创建空白记录，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/39336546/