Before I describe the issue, please forgive any incorrect terms and accidental references to objects instead of arrays and vice-versa, I'm not completely up to speed on this but working my way through it.
I have the following array in PHP
saved as a session variable:
{"CategoryF":[],"CategoryA":["Life","There","People","Land","Family"],"CategoryC":["Various"]}
After a thumbnail in a grid of images is dragged into a new order, it execute a function in javascript
and makes a call to a PHP
script using ajax
. It currently only retrieves the most up to date version of a session array. It will later progress to make the necessary steps to save the updated array back to session variable and database:
var sorty = Sortable.create(thumbcontainer, {
animation: 250,
draggable: "img",
dataIdAttr: 'id',
onUpdate: function (/**Event*/evt) {
var orderList = sorty.toArray();
var catsArray =
$.ajax({
type: 'POST',
url: 'includes/proc_cats.php',
dataType: 'json'
}).done(function(returnedCatsArray) {
console.log(returnedCatsArray);
});
console.log('Dragged. Order is: ' + orderList);
}
});
proc_cats.php
<?php
// Access the existing session
session_start();
// $catsArray is a session variable, in the format as above.
$catsArray = json_encode($_SESSION['categoriesPics']);
echo $catsArray;
?>
The var
orderList will produce a string with the order of each thumbnail by id, separated by comma: '42,35,95,12,57'
.
The console shows the PHP
array as a javascript
array fine but in a different order. I want to be able to insert the string containing the orders into the array and save it back into the database. It will associate with its relevant category, similar to:
{"CategoryF":[],"CategoryA":["Life":["23,74,47,12,86,83,12"],"There","People","Land","Family"],"CategoryC":["Various"]}
But can't lose the order as other parts of the site reference the array by indices using array_keys
. The console produces:
Object:
CategoryA:Array[0]
CategoryC:Array[0]
CategoryF:Array[5]
Have I missed something? I believe that the overall array is an object rather than an array because it didn't have any index whereas the subcategories did and they get presented as an array. array_keys
in PHP
have made it straightforward enough to work around any indexing problems up until now on the PHP side in other areas of the site but I'm wondering if the solution for the javascript
side is something as straightforward? The subcategories currently have indices only because I've yet to associate and orderList with them so I'm not trying not to backtrack and build an index for the array as it's going to get difficult (unless there's a simple way to do this that I've overlooked).
(This is a more specific version of a question I asked an hour ago that I've now deleted for being too broad).