我使用php製作了註冊頁面。當我在填寫所有數據正確存儲在數據庫中後註冊一個用戶時,在此之後如果我刷新註冊頁面而沒有填充任何內容,則最近的用戶數據再次存儲在數據庫中。爲什麼是這樣?而且最後的腳本不工作當我刷新頁面時數據自動存儲在數據庫中
下面是我的PHP代碼
<?php
if (isset($_POST['register'])) {
$ip = getIp();
$c_name = $_POST['c_name'];
$c_email = $_POST['c_email'];
$c_pass = $_POST['c_pass'];
$c_image = $_FILES['c_image']['name'];
$c_image_tmp = $_FILES['c_image']['tmp_name'];
$c_country = $_POST['c_country'];
$c_city = $_POST['c_city'];
$c_contact = $_POST['c_contact'];
$c_address = $_POST['c_address'];
move_uploaded_file($c_image_tmp, "customer/customer_images/$c_image");
$insert_c = "insert into customers (customer_ip,customer_name,customer_email,customer_pass,customer_country,customer_city,customer_contact,customer_address,customer_image) values ('$ip','$c_name','$c_email','$c_pass','$c_country','$c_city','$c_contact','$c_address','$c_image')";
}
$run_c = mysqli_query($con, $insert_c);
$sel_cart = "select * from cart where ip_add='$ip'";
$run_cart = mysqli_query($con, $sel_cart);
$check_cart = mysqli_num_rows($run_cart);
if ($check_cart==0) {
$_SESSION['customer_email']=$c_email;
echo "<script>alert('Accound has been created successfully')</script>";
echo "<script>window.open('customer/my_accont.php'.'_self')</script>";
}
else {
$_SESSION['customer_email']=$c_email;
echo "<script>alert('Accound has been created successfully')</script>";
echo "<script>window.open('checkout.php'.'_self')</script>";
}
?>
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