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这段 javascript 代码广告被修改为上传的图片数量等于 4。这很好用，因为它总是下载 4 张图片，但它为所有图片带来相同的路径，女巫是四次相同的图片。注意我使用随机数生成器来确保图片是唯一的。

i=0;
    $(function(){
        var btnUpload=$('#upload');
        var status=$('#status');
        new AjaxUpload(btnUpload, {
            action: 'upload-file.php',
            name: 'uploadfile',
            onSubmit: function(file, ext){
                 if (! (ext && /^(jpg|png|jpeg|gif)$/.test(ext))){ 
                    // extension is not allowed 
                    status.text('Only JPG, PNG or GIF files are        allowed');
                return false;
            }
            else if(i>=4){addClass('error');}
            status.text('Uploading...');
        },
        onComplete: function(file, response){
            //On completion clear the status
            status.text('');
            //Add uploaded file to list
            if(response==="success"&&i<=3){
                $('<li></li>').appendTo('#files').html('<img src="./uploads/'+file+'" alt="" /><br />'+file).addClass('success');
            i++;} else{
                $('<li></li>').appendTo('#files').text(file).addClass('error');
            }
        }
    });

    });

处理所有下载的块是：

<?php
session_start();
if($_SESSION['upload-file'] == "AAA"){$_SESSION['upload-file']=0;}
$uploaddir = 'uploads/'; 
$random_digit = rand(0,1000000);
$file = $uploaddir.$random_digit.basename($_FILES['uploadfile']['name']);     
  if($_SESSION['upload-file'] == 0){$_SESSION['Photo1'] = $file;$_SESSION['upload-     file']++;}
  if($_SESSION['upload-file'] == 1){$_SESSION['Photo2'] = $file;$_SESSION['upload-file']++;}
  if($_SESSION['upload-file'] == 2){$_SESSION['Photo3'] = $file;$_SESSION['upload-file']++;} 
  if($_SESSION['upload-file'] == 3){$_SESSION['Photo4'] = $file;$_SESSION['upload-file']++;$_SESSION['upload-file']="AAA";}

if (move_uploaded_file($_FILES['uploadfile']['tmp_name'], $file)) { 
  echo "success"; 

} else {
    echo "error";
}

the variable $_SESSION['upload-file'] ='AAA'; is only to create a loop.
So the block up there goes into file end_temp_p.php and the second block is upload-file.php
This donwload 4 time the same file wich look like a paradox
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1 回答 1

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我看不出是什么导致了您的问题，因为您提供的信息不充分。看起来您正在使用AjaxUpload，它已经很老了，不再受支持。如果我是正确的，请考虑升级到由同一作者Fine Uploader替换 AjaxUpload 的库。您可能会发现您的许多问题/疑问在升级后得到解决。

于 2013-02-09T12:42:18.803 回答