PHP output buffering Loop and Jquery Ajax

Question

I was reading a lot of things about comet programming but I'm thinking if this implementation could be possible.

this is my jscript

$.ajax({
   url:"mypage.php",
   onProgress:{function(rsp){ //i know there is no such function like this
     $("#mydiv").append(rsp+"<br>");
   }}
});

and this is my mypage.php

<?php
    while(true){
    ob_start();
      echo time();
    ob_flush();
    }
    ?>

now what i want is my ajax request would fetch results during progress. Is this possible?

Petah's answer at http://stackoverflow.com/questions/7740646/jquery-ajax-read-the-stream-incrementally This solution works a treat for me — Steve P, Aug 08 '16 at 13:44

score 1 · Accepted Answer · edited May 23 '17 at 12:02

1

for this thing to happen you have to use comet technique.... please refer

What is the best way of showing progress on an Ajax call?

edited May 23 '17 at 12:02

Community

1
1

answered Apr 26 '12 at 06:25

Ankur Verma

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Lawrence Cherone · Answer 2 · 2012-04-26T06:50:29.197

Heres the polling way todo it, if your only looking to grab the time. why have an infinite loop using resources.

<?php
//polling.php
if(isset($_GET['poll']) && $_GET['poll']=='1'){
$out = array('thetime'=>date("F j, Y, g:i:s a")); 
echo json_encode($out);
die;
}
?>


<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script>
function poll(){
   setTimeout(function(){

      $.ajax({ url: "http://localhost/polling.php?poll=1",cache: false,
      success: function(data){
      //Do something with returned json
      $("#time").replaceWith("<p id=\"time\">The Server Time & Date is: "+ data.thetime +"</p>");
        //Next poll
        poll();
      }, dataType: "json"});
     // 1/2 a sec
  }, 500);
}

$(document).ready(function(){
    poll();
});
</script>

<p id="time">The Server Time & Date is: <?php echo date("F j, Y, g:i:s a");?></p>

PHP output buffering Loop and Jquery Ajax

2 Answers2