注册表单css和html
<div class="col-md-12">
<div class="box">
<div class="box-header">
<center>
<h2>Register A New Account</h2>
</center>
</div>
<!-- box-header ends -->
<form action="signup.php" enctype="multipart/form-data" method="post">
<div class="form-group">
<label>FIRST NAME</label> <input class="form-control" name="first" required="" type="text">
</div>
<!--form group -->
<div class="form-group">
<label>LAST NAME</label> <input class="form-control" name="last" required="" type="text">
</div>
<!-- form group -->
<div class="form-group">
<label>Email</label> <input class="form-control" name="email" required="" type="text">
</div>
<!-- form group -->
<div class="form-group">
<label>USER NAME</label> <input class="form-control" name="uid" required="" type="text">
</div>
<!-- form group -->
<div class="form-group">
<label>PASSWORD</label> <input class="form-control" id="pwd" name="pwd" onchange="validatePassword()" required="" type="password">
</div>
<!-- form group -->
<div class="form-group">
<label>CONFIRM PASSWORD</label> <input class="form-control" id="cpwd" name="cpwd" required="" type="password">
</div>
<!-- form group -->
<div class="form-group">
<label>COUNTRY</label> <input class="form-control" name="country" required="" type="text">
</div>
<!-- form group -->
<div class="form-group">
<label>CITY</label> <input class="form-control" name="city" required="" type="text">
</div>
<!-- form group -->
<div class="form-group">
<label>ADDRESS</label> <input class="form-control" name="address" required="" type="text">
</div>
<!-- form group -->
<div class="form-group">
<label>CONTACT</label> <input class="form-control" name="phone" required="" type="text">
</div>
<!-- form group -->
<div class="form-group">
<label>PROFILE PICTURE</label> <input class="form-control" name="image" required="" type="file">
</div>
<!-- form group -->
<div class="text-center">
<button class="btn btn-primary" name="submit" type="submit"><i class="fa fa-user-md" style="padding:0px 5px;"></i>Sign Up</button>
</div>
<!-- text-center -->
</form>
<!-- form ends -->
</div>
<!-- box ends -->
</div>
<!-- col-m-9 ends -->
php代码进入数据库并验证
<?php
use PHPMailer\PHPMailer\PHPMailer;
if (isset($_POST['submit'])) {
include_once 'includes/db.php';
$first = mysqli_real_escape_string($conn, $_POST['first']);
$last = mysqli_real_escape_string($conn, $_POST['last']);
$email = mysqli_real_escape_string($conn, $_POST['email']);
$uid = mysqli_real_escape_string($conn, $_POST['uid']);
$pwd = mysqli_real_escape_string($conn, $_POST['pwd']);
$country = mysqli_real_escape_string($conn, $_POST['country']);
$city = mysqli_real_escape_string($conn, $_POST['city']);
$phone = mysqli_real_escape_string($conn, $_POST['phone']);
$address = mysqli_real_escape_string($conn, $_POST['address']);
$img = mysqli_real_escape_string($conn, $_FILES['image']['name']);
$temp_name = mysqli_real_escape_string($conn, $_FILES['image']['tmp_name']);
$userip = getUserIP();
move_uploaded_file($temp_name, "customer/customer_images/$img");
//Error handlers
//Check for empty fields
if (empty($first) || empty($last) || empty($email) || empty($uid) || empty($pwd) || empty($country) || empty($city) || empty($phone) || empty($address) || empty($img)) {
echo "<script>alert('Empty Fields.Please fill all the details');
window.location.href='../signup.php?signup=empty';
</script>";
exit();
} else {
//check if input character are valid
if (!preg_match("/^[a-zA-z]*$/", $first) || !preg_match("/^[a-zA-z]*$/", $last)) {
echo "<script>alert('Invalid Characters');
window.location.href='../signup.php?signup=invalid';
</script>";
exit();
} else {
//check valid email
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
echo "<script>alert('Ivalid email id');
window.location.href='../signup.php?signup=email';
</script>";
exit();
} else {
//check if username is same as others'
$sql = "SELECT * FROM users WHERE user_uid='$uid' AND user_email='$email'";
$result = mysqli_query($conn, $sql);
$resultCheck = mysqli_num_rows($result);
if ($resultCheck > 0) {
echo "<script>alert('email or username already exist.Please try again with new email id');
window.location.href='../signup.php?signup=userexist';
</script>";
exit();
} else {
//Hash the password
$hashedpwd = password_hash($pwd, PASSWORD_BCRYPT);
$token = 'qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM0123456789!@#$%^&*()';
$token = str_shuffle($token);
$token = substr($token, 0, 10);
$sel_cart = "select * from cart where ip_add='$user_ip'";
$run_cart = mysqli_query($conn, $sel_cart);
$cart_check = mysqli_num_rows($run_cart);
//Insert user into database
$sql = "INSERT INTO users (user_first,user_last,user_email,user_uid,user_pwd,isEmailConfirmed,token,country,city,address,phone,image,userip) VALUES('$first','$last','$email','$uid','$hashedpwd','0','$token','$country','$city','$address','$phone','$img','$userip');";
mysqli_query($conn, $sql);
if ($cart_check > 0) {
$_SESSION['user_email'] = $email;
echo "<script>alert('Registration successfull.Please check your mail to verfiy the details.Thank you');
window.open('checkout.php','_self');
</script>";
} else {
$_SESSION['user_email'] = $email;
echo "<script>alert('Registration successfull.Please check your mail to verfiy the details.Thank you');
window.location.href='../signup.php?signup=successfull';
window.open('index.php','_self');
</script>";
}
}
}
}
}
} else {
header("Location: ../signup.php");
exit();
}
这是我的注册代码。这里的问题是，当未注册并将产品添加到购物车中的用户进入注册页面时。注册后，他需要进入结账页面。如果购物车内没有商品，则页面需要重定向到index.php。我面临的问题是当购物车有一个商品时数据被输入数据库，然后在注册后重定向到index.php而不是checkout.php。
答案 0 :(得分：0)
中存在小变量名称错误
$sel_cart = "select * from cart where ip_add='$user_ip'";
您添加了$user_ip而不是$userip。通过以下方式更新您的代码，
$sel_cart = "select * from cart where ip_add='$userip'";