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creating a file upload progress bar using jquery and php involves several steps, including setting up the html for the file input, using jquery to handle the file upload, and utilizing php to manage the backend processing. below is a comprehensive tutorial with code examples.

step 1: setting up the html

first, create an html form that allows users to upload files. we will also include a progress bar to display the upload progress.

```html
!doctype html
html lang="en"
head
meta charset="utf-8"
meta name="viewport" content="width=device-width, initial-scale=1.0"
titlefile upload with progress bar/title
link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/boots..."
script src="https://code.jquery.com/jquery-3.6.0...."/script
/head
body
div class="container"
h2file upload with progress bar/h2
form id="uploadform" enctype="multipart/form-data"
div class="form-group"
label for="file"choose file:/label
input type="file" class="form-control" id="file" name="file" required
/div
button type="submit" class="btn btn-primary"upload/button
/form
br
div class="progress"
div class="progress-bar" role="progressbar" style="width: 0%;" id="progressbar"/div
/div
div id="status"/div
/div

script src="upload.js"/script
/body
/html
```

step 2: writing the jquery code

next, create a javascript file named `upload.js` to handle the form submission and manage the file upload progress.

```javascript
$(document).ready(function() {
$('uploadform').on('submit', function(e) {
e.preventdefault(); // prevent the default form submission

// create a formdata object
var formdata = new formdata(this);

// make an ajax request
$.ajax({
xhr: function() {
...

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