处理大部分响应部分

Question

I am making an ajax call to php like as

$.ajax({
    url: "php_scripts/work.php",
    type: "post",
    data: {count: count},
    success: function(d) {
        //prev html content eg <div>blah blah </div>
        var prevData = document.getElementById("result_of_duplicate_div").innerHTML;
        prevData += d;

        //updated content
        document.getElementById("result_of_duplicate_div").innerHTML = d;
    }
});

PHP Code:

<?php
require 'FirePHPCore/fb.php';
ob_start();

//session_start();
//FB::log('Log message');
//FB::info('Info message');
//FB::warn('Warn message');
//FB::error('Error message');

if(isset($_POST['count'])){
    $fileCount = $_POST['count'];
    while($fileCount < 10){
        echo  $fileCount;
        sleep(3);
        $fileCount++;
    }
}else{
    FB::log('count is null');
}

This is just an example i was trying I was expecting my webpage should first display 1 then 2 upto 9 but it printed 1 to 9 in one attempt.

In reality i will be using socket to communicate between java server and php client where server will process large data and give part by part response which can be displayed to end-user, so i sketch that problem in the above code, so can anyone help me to achieve this ? thanks