image location to database

function.js

@@ -15,23 +15,6 @@ function myFunction() {
     document.getElementById("myBar").style.width = scrolled + "%";
 }
 
-//display image
-/*
-function readURL(input) {
-    if (input.files && input.files[0]) {
-        var reader = new FileReader();
-        reader.onload = function(e) {
-            $('#imagePreview').css('background-image', 'url('+e.target.result +')');
-            $('#imagePreview').hide();
-            $('#imagePreview').fadeIn(650);
-        }
-        reader.readAsDataURL(input.files[0]);
-    }
-}
-$("#imageUpload").change(function() {
-    readURL(this);
-});
-*/
 //display input from database
 $(document).ready(function() {
   $.ajax({
@@ -70,7 +53,7 @@ $(document).ready(function() {
     var files = $('#imageUpload')[0].files[0];
     fd.append('file',files);
     $.ajax({
-      url: 'test.php',
+      url: 'upload.php',
       type: 'POST',
       data: fd,
       contentType: false,

upload.php

 <?php
   session_start();
+  include_once 'dbconnection.php';
   if(is_uploaded_file($_FILES['file']['tmp_name'])) {
     $sourcePath = $_FILES['file']['tmp_name'];
     $targetPath = "upload/".basename($_SESSION['name'].'.'.end((explode(".", $_FILES['file']['name']))));
     if(move_uploaded_file($sourcePath, $targetPath)) {
       $_SESSION['avatar'] = $targetPath;
+      $query = "UPDATE users SET image=? WHERE username=?";
+      $query = $link->prepare($query);
+      $query->bind_param('ss', $targetPath,$_SESSION['name']);
+      $query->execute();
+      $query->close();
+      $link->close();
+      //echo $_SESSION['name'];
       echo $targetPath;
     }
   }