export mysql data to excel using php ajax call - php

Question

i am doing an ajax call and called a php page which is extracting data from a mysql table and need to convert it to excel and need to store in server folder only.
Now the problem is while doing the ajax call, its going to that php page and returning to the main page without creating the excel file.
But when i tested the php page directly then its creating the excel file and downloading it. But why its not working via ajax call.
This is my ajax call from previous page --
$.ajax({
type: "POST",
url: "admin-advertiser-details-exports.php?selectedColumns="+selectedColumns+"&excelColumn="+excelColumn,
contentType:false,
processData:false,
success:function(data){
alert('Export done');
}
});
And this is my php page which is exporting to excel --
<?php
session_start();
include 'db.php';
if(!isset($_SESSION))
{
$uname=$_SESSION['uname'];
}
else if(empty($_SESSION['uname']))
{
header('Location: index.php',TRUE);
}
$UserName = $_SESSION['uname'];
$UserID = $_SESSION['uid'];
$UserType = $_SESSION['utype'];
$selectedColumns = $_GET['selectedColumns'];
$excelColumn = $_GET['excelColumn'];
$array = explode('\t',$excelColumn);
$sql = "select ".$selectedColumns." from advertisers_details ad join user_details ud on ad.adv_manager=ud.user_id order by ad.adv_id asc";
$setRec = mysqli_query($linkID1, $sql);
$columnHeader = '';
foreach ($array as $value) {
$value = '"' . $value . '"' . "\t";
$columnHeader .= $value;
}
$setData = '';
while ($rec = mysqli_fetch_row($setRec))
{
$rowData = '';
foreach ($rec as $value)
{
$value = '"' . $value . '"' . "\t";
$rowData .= $value;
}
$setData .= trim($rowData) . "\n";
}
header("Content-type: application/octet-stream");
header("Content-Disposition: attachment; filename=advertiser_detail.xls");
header("Pragma: no-cache");
header("Expires: 0");
echo ucwords($columnHeader) . "\n" . $setData . "\n";
?>
If i am running this php page directly the i am getting the excel file, but via ajax call its not working.

Answer 1

Hope this example work best for you.
I have used window.open and set url of target file with parameter.
JS code used
/* Export Orders */
$(document).on('click','#btn_export_delivery_order',function(){
var first_input = $('#name_email_order_search').val();
var date_range = $('#reportrangeorder').val();
var order_status = $('#order_status').val();
window.open("ajax_responce.php?method_name=export_orders&shop="+ shop+"&first_input=" + first_input + "&date_range=" + date_range + "&order_status=" + order_status + "", '_blank');
});
Code used in ajax_response.php
public function export_orders(){
ob_start();
if (isset($_GET['shop']) && $_GET['shop'] != '') {
$export = array();
$export_data = array();
$shopinfo = $this->get_settings($_GET['shop']);
$store_client_id = $shopinfo['store_client_id'];
$date_format = $shopinfo['date_format_first'];
$options_arr = array("skip" => 0, "limit" => 99999);
$where = $this->where_to_clause_export_search($store_client_id, $_GET);
$fullfilment_status_array = array('Unfulfilled','Fullfill','Partially fullfill','Cancelled');
$export_result = $this->select_result(TABLE_ORDERS, '*', $where, $options_arr);
foreach($export_result['data'] as $row){
$export['Name'] = $row['order_name'];
$export['Billing Name'] = $row['first_name'] . ' ' . $row['last_name'];
$export['Email'] = $row['email'];
$export['Fulfillment Status'] = $fullfilment_status_array[$row['status']];
$export['Total'] = $row['total'];
$export['Created at'] = date($date_format, strtotime($row['created_at']));
$export['Delivery Status'] = $row['delivery_status'] == 0 ? 'Pending' : 'Delivered';
$export['Delivery Date'] = date($date_format, strtotime($row['delivery_date']));
$export['Delivery Time'] = (isset($row['delivery_time']) && $row['delivery_time'] != '') ? $row['delivery_time'] : '-';
$export_data[] = $export;
}
/* Export Data */
$filename = "orders_export.csv";
$f = fopen('php://output', 'w');
header('Content-type: application/csv');
header('Content-Disposition: attachment; filename=' . $filename);
$outputdata = $export_data;
$firstLineKeys = false;
foreach ($outputdata as $row) {
if (empty($firstLineKeys)) {
$firstLineKeys = array_keys($row);
fputcsv($f, $firstLineKeys);
$firstLineKeys = array_flip($firstLineKeys);
}
fputcsv($f, $row);
}
fclose($f);
ob_end_flush();
exit();
}
}
This code is tested well and working fine.