HTML PHP Ajax Progress Bar

Today, We want to share with you HTML PHP Ajax Progress Bar.In this post we will show you Ajax File Upload with Progress Bar using PHP JQuery, hear for jQuery Progress Bar for PHP AJAX File Upload we will give you demo and example for implement.In this post, we will learn about PHP Ajax Progress bar taking data from MySQL table with an example.

HTML PHP Ajax Progress Bar

There are the Following The simple About HTML PHP Ajax Progress Bar Full Information With Example and source code.

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As I will cover this Post with live Working example to develop video upload with progress bar in php, so the Show Progress Report in PHP Scripts for this example is following below.

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PHP functions a Long-running Process


    //simple long_process.php
        //do something
        echo 'Loading...';

PHP create Server-sent Events Within a Loop

header('Content-Type: text/event-stream');
// recommended to prevent caching of event data.
header('Cache-Control: no-cache'); 
function work_assign($id, $message, $progress) {
    $d = array('message' => $message , 'progress' => $progress);
    echo "id: $id" . PHP_EOL;
    echo "data: " . json_encode($d) . PHP_EOL;
    echo PHP_EOL;
for($i = 1; $i <= 10; $i++) {
    work_assign($i, 'on iteration ' . $i . ' of 10' , $i*10); 
work_assign('CLOSE', 'Process complete');

PHP Simple manage Work Progress from the Chrome Browser

<!DOCTYPE html>
        <meta charset="utf-8" />
		<title>PHP Ajax Progress bar taking data from MySQL table</title>
        <input type="button" onclick="workStart();"  value="Start Long Work" />
        <input type="button" onclick="workStop();"  value="Stop Work" />
        <div id="preview_area" style="border:1px solid #000; padding:10px; width:300px; height:250px; overflow:auto; background:#eee;"></div>
        <progress id='progressor' value="0" max='100' style=""></progress>  
        <span id="percentage" style="text-align:right; display:block; margin-top:5px;">0</span>

Listening for PHP Server Updates

var es;
function workStart() {
    es = new EventSource('sse_progress.php');
    //a message is received
    es.addEventListener('message', function(e) {
        var result = JSON.parse( );
        if(e.lastEventId == 'CLOSE') {
            addLog('Good Luck Received CLOSE closing');
            var live_progressBar = document.getElementById('progressor');
            live_progressBar.value = live_progressBar.max; //max out the progress bar
        else {
            var live_progressBar = document.getElementById('progressor');
            live_progressBar.value = result.progress;
            var perc = document.getElementById('percentage');
            perc.innerHTML   = result.progress  + "%";
   = (Math.floor(live_progressBar.clientWidth * (result.progress/100)) + 15) + 'px';
    es.addEventListener('error', function(e) {
        addLog('sorry, Error occurred);
function workStop() {
    addLog('sorry Dear....Interrupted');
function addLog(message) {
    var r = document.getElementById('preview_area');
    r.innerHTML += message + '<br>';
    r.scrollTop = r.scrollHeight;

Web Programming Tutorials Example with Demo

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