2 problems, I am getting an undefined index error only for the filename. I have created new pages, but each time the same problem with file names. The data is also not going into the database, its connecting, but nothing being entered.
<?php
include("conn.php");
    $name = $conn->real_escape_string($_POST['FirstName']);
    $surname = $conn->real_escape_string($_POST['Surname']);
    $dateOfBirth = $conn->real_escape_string($_POST['DOB']);
    $emailAddress = $conn->real_escape_string($_POST['email']);
    $phoneNumber = $conn->real_escape_string($_POST['Phone']);
    $address = $conn->real_escape_string($_POST['Address1']);
    $address2 = $conn->real_escape_string($_POST['Address2']);
    $city = $conn->real_escape_string($_POST['City']);
    $county = $conn->real_escape_string($_POST['County']);
    $postcode = $conn->real_escape_string($_POST['Postcode']);
    $password = $conn->real_escape_string($_POST['postpass']);
    $filename = $_FILES['imgupload']['name'];
    $finddate = date("Y-m-d");
    $filetmp = $_FILES['imgupload']['tmp_name'];
move_uploaded_file($filetmp, "../ETimg/".$filename);
$insert = "INSERT INTO ET_UserDetails (FirstName, Surname, DateOfBirth,      EmailAddress, PhoneNumber, Address1, Address2, City, County, Postcode, Pass,   imgpath, Date) VALUES ('$name', '$surname', '$dateOfBirth', '$emailAddress', '$phoneNumber', '$address', '$address2', '$city', '$county', '$postcode', '$password', '$filename', '$finddate')";
The original code where the info is coming from
<div class="form-row">
 <div class="form-group col-lg-6">
     <input type="file" class="form-control" name="imgupload" id ="real-   file" hidden="hidden"/>
      <button type="button" id="custom-button">Select an image file</button>
     <span id="custom-text">No file chosen</span>
       <script type="text/javascript">
 const realFileBtn = document.getElementById("real-file");
 const customBtn = document.getElementById("custom-button");
 const customTxt = document.getElementById("custom-text");
 customBtn.addEventListener("click", function(){
 realFileBtn.click();
 });
 realFileBtn.addEventListener("change", function() {
 if(realFileBtn.value) {
     customTxt.innerHTML = realFileBtn.value.match(/[\/\\]   ([\w\d\s\.\-\(\)]+)$/)[1];
 } else {
     customTxt.innerHTML = "No file chosen yet.";
 }
 });
         </script>
 </div>
 
    