What am I missing? AJAX javascript JSON array parse to php

Question

I am trying to pass a set of already loaded images to a php file to then access a database to load more images unique to the ones already loaded. The javascript passes an array of the sources of the images, the php file performs a query to select all images limited to 12 not in the passed array. php then passes back the images as JSON objects so I can use JS to appropriately handle them.

SUMMARY

1. Get source of loaded images and put into a JSON array
2. Pass JSON array to php file
3. Perform mysql query to get more images
4. pHp puts images into a new array of images
5. Pass new images array to javascript
6. Javascript output images.

The javascript isn't loading the images, nor is it returning the test array I have in the php file of numbers. Why is it not working?

JAVASCIRPT

var imageArray = {};
imageArray.itemList = [];

function imagesLoaded(){
    var gal_img_thumbs = document.getElementsByClassName("gal-thumb-image");
    for (var i = 0; i < gal_img_thumbs.length ; i++){
        var img = gal_img_thumbs[i].firstChild.getAttribute("src");         
        var new_obj = {'src':img};
        imageArray.itemList.push( new_obj);

        //imageArray.itemList.[i]['src']=img;
    }
}

function loadImages(){
    console.log("load images");

    imagesLoaded();
    $.ajax({
        url: "getimages.php",
        dataType: "json",
        data: {
            imagesArray : imageArray.itemList
        },
        success: function(images){
            for(var i = 0; i < images.length ; i++){
                console.log("image" + images[i]);
            }
        }

    });

}

PHP

 <?php
$myArray = $_REQUEST['imagesArray'];

$images = array();

for($i = 0; $i < 10; $i++){
    $image = array(
        "num" => $i
    );
    $images[] = $image;
}

echo json_encode($images);
?>

FILE DIR

• ..\\Gallery\\index.php
• ..\\Gallery\\getimages.php
• ..\\Gallery\\js\\ajaxStuff.js

Answer 1

try this

var imageArray = {};
            imageArray.itemList = [];

            function imagesLoaded() {
                var gal_img_thumbs = document.getElementsByClassName("gal-thumb-image");
                for (var i = 0; i < gal_img_thumbs.length; i++) {
                    var img = gal_img_thumbs[i].firstChild.getAttribute("src");
                    var new_obj = {'src': img};
                    imageArray.itemList.push(new_obj);

                    //imageArray.itemList.[i]['src']=img;
                }
            }

            function loadImages() {
                console.log("load images");

                imagesLoaded();
                $.ajax({
                    url: "/test/test.php",
                    dataType: "json",
                    data: {
                        imagesArray: imageArray.itemList
                    },
                    success: function(images) {
                        for (var i = 0; i < images.length; i++) {
                            console.log("image" + images[i]);
                        }
                    }

                });
            }
            $(function(){
            loadImages();
            });

Answer 2

try adding async:false so that ajax begins after the imagesLoaded(); call is completed

Edit: another thing you may try is to use beforeSend: function() {..}