Individual uploads via Ajax to prevent timeouts etc

I have a client who needs to upload large amounts of images at the same time ("busy, busy, busy - I just want to 'select all' and have them all upload, all 100 (or so) of them…" - that type of thing.).

Initially he wanted to upload one image, all of a sudden its over 100! I can simply change it to upload multiple files but since some of the files could be over 8mb I was thinking in order to prevent timeout issues and long script executions, I could just loop through the files in the browser and upload them one by one via jQuery.

The thing is, whilst its easy enough to loop through them all, I'm not sure how to 'grab' and send up each file which has been selected via the file input (multiple).

My form is as follows:

<form role="form" name="photographUploadForm" method="post"  enctype="multipart/form-data">

My file input is:

<input type="file" name="upload_new_photograph" id="upload_new_photograph" multiple>

My ajax call contains the following:

      $("#upload-photograph-button").click(function (e) {
        e.preventDefault();
        
        var files = $('#upload_new_photograph')[0].files;
        
        for(var i = 0; i<files.length; i++){
    // Lets grab the name and size to make sure they're looping correctly
          console.log(files[i].name+'----'+files[i].size);

          $.ajaxSetup({
            headers: { 'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content') }
          });
          var form = document.forms.namedItem("photographUploadForm"); // Name of form
          var formData = new FormData(form);
          $.ajax({
            type: 'post',
            url: 'urlgoeshere',
            dataType: 'json',
            contentType: false,
            data: formData,
            processData: false,
            success: function(returnedData){

… etc

The above will loop through the multiple images (and log the individual names) correctly but (obviously) only uploads the same image multiple times, so I need to only upload each respective file contained in the loop.

Can anyone advise how I would do this (or if there's an alternative way of getting around timeout and script execution times)?

Any help most appreciated!

P.S. I'd rather not edit the server configuration to allow scripts to run for really long times etc