使用PHP和ajax从特定文件夹下载文件 [英] Download file from a specific folder using PHP and ajax

问题描述

我需要使用ajax从spesicif文件夹下载不同类型的文件。问题是当执行代码II时收到此消息



[此处]

我找了类似的教程我找不到解决方案你能不能请帮助



我尝试了什么：



这是我的index.php文件

I am required to download different type of files from a spesicif folder using ajax .The problem is that when execute the code I I get this message

[ here]
I have looked for the similar tutorials I coundnt find a solution Could you please help

What I have tried:

This my index.php file

$(function(){
    	fetchData();
    
    	function fetchData(){
    	$.ajax({
    		url:"ajax.php",
    		method:"post",
    		success:function(data){
            $('#data').html(data);
    		}
    	})
    	}
    
    	$(document).on('click','.download',function(e){
    		e.preventDefault();
    var fileName=$(this).attr("id");
    	$.ajax({
    			url:"download.php",
    			method:"post",
    			data:{fileName:fileName},
    			success:function(e){
                    alert(e);
                }
    		})
    
    	});
    })

这个我正在使用的ajax.php文件填充文件信息表（比如名字，下载Count）

this my ajax.php file that I am using populate the file Information table (like names, and download Count)

<?php

$handleDir = opendir($directory) or die('error');
$fileName = array();
$count = (count(scandir($directory)) - 2);
$output .= '<table class="table table-bordered">
<th width="20%">File Name</th>
<th width="10%">Download Count</th>
';
if ($count) {
    while ($file = readdir($handleDir)) {
        if ($file == '.' || $file == '..') {
            continue;
        }

        $fileName[] = $file;
    }

    $query = 'select * from download_manager order by  id desc';
    $fileInfo = array();
    $result = mysqli_query($link, $query);
    if (mysqli_num_rows($result)) {
        while ($singleFile = mysqli_fetch_array($result)) {
            $fileInfo[$singleFile['filename']] = $singleFile['downloads'];
        }
    }

    foreach ($fileName as $key => $value) {
        $output .= '<tr><td >
        <span class="download" id="'.$value.'">'.$value.'</span>
       </td>
       <td>'.$fileInfo[$value].'</td>
       </tr>';
    }
}

$output .= '</table>';
echo $output;

?>

这是我的下载php这里发生文件错误

And this is my download php file error occurs in here

if (isset($_POST['fileName'])) {
    $fileName = $_POST['fileName'];

    if (file_exists($directory.'/'.$fileName)) {
        header('Content-Description: File Transfer');
        header('Content-Type: application/octet-stream');
        header('Content-Disposition: attachment; filename='.$directory.'/'.$fileName);
        header('Content-Length: '.filesize($directory.'/'.$fileName));
        ob_clean();
        flush();
        readfile($directory.'/'.$fileName);
        echo 'ok';
        exit;
    } else {
        echo 'no file';
    }
}

任何帮助都将不胜感激谢谢

推荐答案

（function（）{
fetchData（）;

函数fetchData（）{

(function(){ fetchData(); function fetchData(){

.ajax（{
url： ajax.php，
方法： 发布，
成功：函数（数据）{

.ajax({ url:"ajax.php", method:"post", success:function(data){

（' ＃data'）。html（data）;
}
}）
}

('#data').html(data); } }) }

这篇关于使用PHP和ajax从特定文件夹下载文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！