我正在尝试使用jquery validate插件设置一些服务器端验证，但我遇到了问题，似乎无法找到我的代码有什么问题。使用它传递的表单并将数据保存到数据库，即使字段无效或缺失。来自html的前端客户端验证工作正常，但不是后端。这是JsFiddle： https://jsfiddle.net/y7fmb7m1/3/ PHP：
<?php
/**
* Start the session.
*/
session_start();
/**
* Include ircmaxell's password_compat library.
*/
require 'lib/password.php';
/**
* Include our MySQL connection.
*/
require 'connect.php';
//If the POST var "register" exists (our submit button), then we can
//assume that the user has submitted the registration form.
if (isset($_POST['register'])) {
$form = $_POST;
$username = $form['username'];
$password = $form['password'];
$firstName = $form['firstName'];
$lastName = $form['lastName'];
$address = $form['address'];
$email = $form['email'];
$age = $form['age'];
$phone = $form['phone'];
//Retrieve the field values from our registration form.
$username = !empty($_POST['username']) ? trim($_POST['username']) : null;
$pass = !empty($_POST['password']) ? trim($_POST['password']) : null;
//TO ADD: Error checking (username characters, password length, etc).
//Basically, you will need to add your own error checking BEFORE
//the prepared statement is built and executed.
//Now, we need to check if the supplied username already exists.
//Construct the SQL statement and prepare it.
$sql = "SELECT COUNT(username) AS num FROM users WHERE username = :username";
$stmt = $pdo->prepare($sql);
//Bind the provided username to our prepared statement.
$stmt->bindValue(':username', $username);
//Execute.
$stmt->execute();
//Fetch the row.
$row = $stmt->fetch(PDO::FETCH_ASSOC);
//If the provided username already exists - display error.
//TO ADD - Your own method of handling this error. For example purposes,
//I'm just going to kill the script completely, as error handling is outside
//the scope of this tutorial.
if ($row['num'] > 0) {
die('That username already exists!');
}
//Hash the password as we do NOT want to store our passwords in plain text.
$passwordHash = password_hash($pass, PASSWORD_BCRYPT, array("cost" => 12));
//Prepare our INSERT statement.
//Remember: We are inserting a new row into our users table.
$sql = "INSERT INTO users (username, password, email, phone, address, first_name, last_name, age)
VALUES (:username, :password,:email, :phone, :address, :first_name, :last_name, :age)";
$stmt = $pdo->prepare($sql);
//Bind our variables.
$stmt->bindValue(':username', $username);
$stmt->bindValue(':password', $passwordHash);
$stmt->bindValue(':email', $email);
$stmt->bindValue(':phone', $phone);
$stmt->bindValue(':address', $address);
$stmt->bindValue(':first_name', $firstName);
$stmt->bindValue(':last_name', $lastName);
$stmt->bindValue(':age', $age);
//Execute the statement and insert the new account.
$result = $stmt->execute();
//If the signup process is successful.
if ($result) {
echo 'Thank you for registering with our website.';
header('Location: login.php');
}
}
?>
Html：
<form id="registration">
<fieldset>
<legend class="extraPlace">Register</legend>
<div class="input-group margin col-lg-6">
<span class="input-group-addon"><i class="glyphicon glyphicon-user"></i></span>
<input class="form-control" id="username" name="username" type="text" placeholder="Username *"
maxlength="8" minlength="4" required>
</div>
<div class="input-group margin">
<span class="input-group-addon"><i class="glyphicon glyphicon-lock"></i></span>
<input class="form-control" id="password" name="password" type="password" placeholder="Password *"
maxlength="15" minlength="8" required>
<span class="input-group-addon"><i class="glyphicon glyphicon-lock"></i></span>
<input class="form-control" id="confirmPass" name="confirmPass" type="password" placeholder="Confirm Password *" required>
</div>
<div class="input-group margin">
<span class="input-group-addon"><i class="glyphicon glyphicon-user"></i></span>
<input class="form-control" id="firstName" name="firstName" type="text" placeholder="First Name *" required>
<span class="input-group-addon"><i class="glyphicon glyphicon-user"></i></span>
<input class="form-control" id="lastName" name="lastName" type="text" placeholder="Last Name *" required>
</div>
<div class="input-group margin col-lg-6">
<span class="input-group-addon"><i class="glyphicon glyphicon-envelope"></i></span>
<input class="form-control" id="email" name="email" type="email" placeholder="Email *" required>
</div>
<div class="input-group margin col-lg-6">
<span class="input-group-addon"><i class="glyphicon glyphicon-phone-alt"></i></span>
<input class="form-control" id="phone" name="phone" type="text" maxlength="10" placeholder="Phone Number *" required>
</div>
<div class="input-group margin col-lg-6">
<span class="input-group-addon"><i class="glyphicon glyphicon-home"></i></span>
<input class="form-control" id="address" name="address" type="text" placeholder="Address *" required>
</div>
<div class="input-group margin col-lg-6">
<span class="input-group-addon"><i class="glyphicon glyphicon-time"></i></span>
<input class="form-control" id="age" name="age" type="number" placeholder="Age *" min="18" required>
</div>
<div class="checkbox alignLeftContent">
<label>
<input type="checkbox" name="agreement" id="agreement" value="1" > I have read and agree to the <a
href="https://www.un.org/Depts/ptd/terms-and-conditions-agreement">Terms and Conditions
*</a>
</label><br>
<label>
<input type="checkbox" name="gdpr" id="gdpr" value="1" > GDPR Agreement *
</label>
<div class="margin"><span>* Mandatory fields</span></div>
</div>
<input id="register_submit" class="btn btn-success " type="submit" name="register" value="Register">
</fieldset>
</form>
JS：
$(document).ready(function () {
$.validator.addMethod('strongPass', function(value, element){
return this.optional(element) || value.length >= 8 && value.length <= 15;
}, 'Your password must be between 8 and 15 characters');
$('#registration').validate({
rules: {
firstName: {
required: true
},
lastName: {
required: true
},
age: {
required: true
},
address: {
required: true
},
email: {
required: true,
email: true
},
password: {
required: true,
strongPass: true
},
confirmPass: {
required: true,
equalTo: "#password"
},
username: {
alphanumeric: true,
length: {
minimum: 4,
maximum: 8
}
},
phone: {
required: true,
length: {
minimum: 10,
maximum: 10
}
}
},
messages: {
username: {
alphanumeric: "Cannot contain special symbols",
length: {
minimum: "At least 4 symbols required",
maximum: "No more than 8 symbols allowed"
}
},
firstName: "Please enter your firstname",
lastName: "Please enter your lastname",
age: "Please enter your age",
phone: "Pleae enter your phone",
address: "Please enter your address",
password: {
required: "Please provide a password"
},
email:{
required: "Please enter an email address",
email: "Please enter a <i>valid email</i> address"
}
},
submitHandler: function (form) {
$(form).submit();
}
});
})