PHP $_POST not seeing data appended to FormData - php

Question

Okay so I have an uploader script that I customized and it works great. I have 2 more steps that I need to do for it to be complete and it is beyond my scope and I have read and tried numerous things and still am not getting the results that I want.
Again only code that is releative to my issue will be posted as the code works perfect and does not need any changing with the exception of trying to get a value from AJAX to PHP.
FULL JS FILE BELOW:
jQuery(document).ready(function () {
var img_zone = document.getElementById('img-zone'),
collect = {
filereader: typeof FileReader != 'undefined',
zone: 'draggable' in document.createElement('span'),
formdata: !!window.FormData
},
acceptedTypes = {
'image/png': true,
'image/jpeg': true,
'image/jpg': true,
'image/gif': true
};
// Function to show messages
function ajax_msg(status, msg) {
var the_msg = '<div class="alert alert-'+ (status ? 'success' : 'danger') +'">';
the_msg += '<button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">×</span></button>';
the_msg += msg;
the_msg += '</div>';
$(the_msg).insertBefore(img_zone);
}
// Function to upload image through AJAX
function ajax_upload(files) {
$('.progress').removeClass('hidden');
$('.progress-bar').css({ "width": "0%" });
$('.progress-bar span').html('0% complete');
var productTestID = "333746240";
var formData = new FormData(this);
formData.append('productTestID',productTestID);
//formData.append('any_var', 'any value');
for (var i = 0; i < files.length; i++) {
//formData.append('img_file_' + i, files[i]);
formData.append('img_file[]', files[i]);
}
$.ajax({
url : "upload.php", // Change name according to your php script to handle uploading on server
type : 'post',
data : formData,
dataType : 'json',
processData: false,
contentType: false,
error : function(request){
ajax_msg(false, 'An error has occured while uploading photo.');
},
success : function(json){
var img_preview = $('#img-preview');
var col = '.col-sm-2';
$('.progress').addClass('hidden');
var photos = $('<div class="photos"></div>');
$(photos).html(json.img);
var lt = $(col, photos).length;
$('col', photos).hide();
$(img_preview).prepend(photos.html());
$(col + ':lt('+lt+')', img_preview).fadeIn(2000);
if(json.error != '')
ajax_msg(false, json.error);
},
progress: function(e) {
if(e.lengthComputable) {
var pct = (e.loaded / e.total) * 100;
$('.progress-bar').css({ "width": pct + "%" });
$('.progress-bar span').html(pct + '% complete');
}
else {
console.warn('Content Length not reported!');
}
}
});
}
// Call AJAX upload function on drag and drop event
function dragHandle(element) {
element.ondragover = function () { return false; };
element.ondragend = function () { return false; };
element.ondrop = function (e) {
e.preventDefault();
ajax_upload(e.dataTransfer.files);
}
}
if (collect.zone) {
dragHandle(img_zone);
}
else {
alert("Drag & Drop isn't supported, use Open File Browser to upload photos.");
}
// Call AJAX upload function on image selection using file browser button
$(document).on('change', '.btn-file :file', function() {
ajax_upload(this.files);
});
// File upload progress event listener
(function($, window, undefined) {
var hasOnProgress = ("onprogress" in $.ajaxSettings.xhr());
if (!hasOnProgress) {
return;
}
var oldXHR = $.ajaxSettings.xhr;
$.ajaxSettings.xhr = function() {
var xhr = oldXHR();
if(xhr instanceof window.XMLHttpRequest) {
xhr.addEventListener('progress', this.progress, false);
}
if(xhr.upload) {
xhr.upload.addEventListener('progress', this.progress, false);
}
return xhr;
};
})(jQuery, window);
});
So the above code is from the .js file. The script uploads multiple selected files, which works fine. From what I have read, in order to get additional values sent to PHP you have to use the .append(), which is what I have done below. I created the var productTestID and gave it a value and then added it to the formData using the append().
My issue is how do I read it in PHP?
I have tried $_POST[productTestID] and get no results at all. I even tried doing an isset() and it comes back not set.
So what do I need to do in my PHP code to read or extract that value? Below is an excerpt from my upload.php file and like I said the file uploads work and this is how they are being accessed.
if($_SERVER['REQUEST_METHOD'] == "POST")
{
$error = '';
$img = '';
$dir = dirname($_SERVER['SCRIPT_FILENAME'])."/". DIR_WS_IMAGES . "upload/";
$extensions = array("jpeg","jpg","png");
foreach($_FILES['img_file']['tmp_name'] as $key => $tmp_name )
Further down in my upload.php file:
//MOVE TO FINAL LOCATION
$uploaded_file = $dir.$file_name;
if (rename($uploaded_file, $uniqueFileName))
{
$productTestID = $_POST['productTestID'];
}
$img .= '<div class="col-sm-2"><div class="thumbnail">';
$img .= '<img src="'.$dir.$file_name.'" />'.$uploaded_file . '<br>' .$fileName.'<br>'.$uniqueFileName.'<br>This Product Id is:';
$img .= $productTestID;
$img .= '</div></div>';
}
Thank You,
Shawn Mulligan