小编Ant*_*ent的帖子

我试图创建一个循环，在执行时它会创建多个 csv 文件并下载它们。这是我的代码：

session_start();
require '../connect.php'; //connect.php has connection info for my database
// and uses the variable $connect

$sqldept     = "SELECT department_name from department;";
$departments = mysqli_query($connect, $sqldept);

while ($department = mysqli_fetch_array($departments)) {
    $department = $department[0];
    header('Content-Type: text/csv; charset=utf-8');
    header("Content-Transfer-Encoding: UTF-8");
    header('Content-Disposition: attachment; filename=summary-' . $department . '.csv');
    header("Cache-Control: no-cache, no-store, must-revalidate"); // HTTP 1.1
    header("Pragma: no-cache"); // HTTP 1.0
    header("Expires: 0"); // Proxies

    $date  = date("Y-m-d", strtotime("-28 days" . date("Y-m-d")));
    $edate = date("Y-m-d");

    $startdate  = "(time.dateadded BETWEEN '$date' …

我有一个按钮,当点击时,应该将变量提交给ajax调用,然后创建和下载csv,但由于某种原因,文件只是没有下载.然而,我在Chrome Dev工具中获得了正确的输出:

这是我有的:

的index.php

<form class="navbar-form navbar-left" method="post">
<input hidden id="ajaxquery" value="<?php echo $ajaxquery;?>">
<button type="button" class="btn btn-success btn-lg" id="downloadcsv">Download CSV</button>
</form>

的script.js

$(document).ready(function() {
var csvquery = function(){
    function getUrlParameter(sParam)
{
    var sPageURL = window.location.search.substring(1);
    var sURLVariables = sPageURL.split('&');
    for (var i = 0; i < sURLVariables.length; i++) 
    {
        var sParameterName = sURLVariables[i].split('=');
        if (sParameterName[0] == sParam) 
        {
            return sParameterName[1];
        }
    }
}     
    ajaxquery = $('#ajaxquery').val();
    department = getUrlParameter('department');
    startdate = getUrlParameter('startdate');
    enddate = getUrlParameter('enddate');
    staffsearch = getUrlParameter('staffsearch');
                $.ajax({ …