How to create Ajax Pagination with jQuery & PHP

we are going to see an example PHP code to add ajax pagination to a list of records retrieved from database. pagination is a very important part where huge numbers of records are listed from the database.

jQuery function call to get data in mysql table using Ajax.  INDEX.HTML

var xhr;
function request_call(url,mydata)
{
    if(xhr && xhr.readyState != 4){
            xhr.abort();
    }

    xhr = $.ajax({
            url: url,
            type :'post',
            dataType: 'json',
            data : mydata,
    });
}

function pagignation()
{
    request_call("pagignation.php?pagignation=true","page="+1);
    xhr.success(function( mydata ) {
            $('#render_string').html(mydata.success);
            $('#pagi').html(mydata.pagi);
    });
}
pagignation();

In avbove Request Call function (request_call) to call url in pagignation.php

define('DB_SERVER', "localhost");
define('DB_USER', "root");
define('DB_PASS', "");
define('DB_DATABASE', "student");

$con = mysqli_connect(DB_SERVER, DB_USER, DB_PASS, DB_DATABASE);
if(isset($_REQUEST['pagignation']))
{
    $html = $pagi = '';
    $limit = 2;  
    if (!empty($_POST['page'])) 
    { 
        $page  = $_POST['page']; 
    } 
    else 
    { 
        $page=1; 
    }  
    $start_from = ($page-1) * $limit;  
    $page = $_POST['page'];

    $query = mysqli_query($con, "SELECT * FROM student_detail limit $start_from, $limit "); 
    $totalcount = mysqli_query($con, "SELECT * FROM student_detail"); 
    $total_records  = mysqli_num_rows($totalcount);
    $total_pages = ceil($total_records / $limit); 
    if($total_records>0)
    {
        while ($row = mysqli_fetch_assoc($query))
        {
            $html.='<tr>'
                    . '<td>'.$row['first_name'].'</td>'
                    . '<td>'.$row['last_name'].'</td>'
                    . '<td>'.$row['email'].'</td>'
                    . '<td>'.$row['mobile'].'</td>'
                . '</tr>';
        }


        if(!empty($total_pages))
        {
               $pagi.='<ul class="pagination" id="pagination">'
                            . '<li style="cursor: pointer;" id="1">First</li>';
                        for($i=1; $i<=$total_pages; $i++)
                        {
                            if($i == 1)
                            {
                               $pagi.=' <li class="activepagignation" style="cursor: pointer;" id="'.$i.'">'.$i.'</li>'; 
                            }
                            else
                            {
                                $pagi.=' <li class="" style="cursor: pointer;"  id="'.$i.'">'.$i.'</li>'; 
                            }
                        }
                    $pagi.='<li class="" style="cursor: pointer;" id="'.$total_pages.'">Last</li></ul>';
        }            
    }
    else
    {
        $html.= '<tr><td>No Record Found!!</td></tr>';
        $pagi.= '';
    }
    $data['pagi']= $pagi;
    $data['success'] = $html;
    echo json_encode($data);
}

Now Finally retrive data in Html page after pagination event call in jquery on click event.

$('#pagi').delegate('#pagination li', 'click', function() {
        $("#pagination li").removeClass('activepagignation');
        $(this).addClass('activepagignation');
        var pageNum = this.id;
        request_call("pagignation.php?pagignation=true","page="+pageNum);
        xhr.success(function( mydata ) {
            $('#render_string').html(mydata.success);
         });
});