在这种情况下如何将多张图片上传到远程服务器？循环或重复上传过程？

Posted 2023-02-24

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【中文标题】在这种情况下如何将多张图片上传到远程服务器？循环或重复上传过程？【英文标题】：How do i upload multiple images to remote server in this circumstances?Looping or repeat upload procedure? 【发布时间】：2013-12-09 18:24:32 【问题描述】：

我是php新手，正在做一个表单，它允许我上传几个文本字段然后上传3张图片，然后将图片上传到远程服务器，并将图片的名称保存到数据库中, 这样以后就可以拉出来显示了。（ps忽略SQL注入问题，我只是还没有时间解决这个问题。谢谢）

目前我正在 localhost 上进行测试。 我的问题是我应该循环播放，还是应该只进行 3 次上传？以下是我尝试过的。但是循环试验不是上传文件，它只是直接进入无效文件。另外我想在上传之前确保所有 3 个文件都是有效文件，我是否必须先循环验证然后再循环上传？

请给我一些建议，谢谢你的时间。

<?php
ini_set('display_errors', 1); error_reporting(E_ALL);

ob_start();
session_start();
include 'connect.php';



if ($_POST)

 //get form data



 $Listingname = addslashes(strip_tags($_POST['Listingname']));
 $Location = addslashes(strip_tags($_POST['Location']));
 $nobed = addslashes(strip_tags($_POST['nobed']));
 $zip = addslashes(strip_tags($_POST['zip']));
 $price = addslashes(strip_tags($_POST['price']));
 $username=addslashes(strip_tags($_POST[$_SESSION['username']]));

 if (!$Listingname||!$nobed||!$nobed||!$zip||!$price)
    echo "Please fill out all fields"; 
    else 
    for($i=0;$i<count($_FILES["image"]["name"]);$i++)
    $allowedExts = array("gif", "jpeg", "jpg", "png");
$temp = explode(".", $_FILES["file"]["name"][$i]);
$extension = end($temp);
if ((($_FILES["file"]["type"] == "image/gif")
|| ($_FILES["file"]["type"] == "image/jpeg")
|| ($_FILES["file"]["type"] == "image/jpg")
|| ($_FILES["file"]["type"] == "image/pjpeg")
|| ($_FILES["file"]["type"] == "image/x-png")
|| ($_FILES["file"]["type"] == "image/png"))
&& ($_FILES["file"]["size"] < 400000)
&& in_array($extension, $allowedExts))
  
  if ($_FILES["file"]["error"] > 0)
    
    echo "Return Code: " . $_FILES["file"]["error"] . "<br>";
    
  else
    
    echo "Upload: " . $_FILES["file"]["name"][$i] . "<br>";
    echo "Type: " . $_FILES["file"]["type"] . "<br>";
    echo "Size: " . ($_FILES["file"]["size"] / 1024) . " kB<br>";
    echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br>";

    if (file_exists("upload/" . $_FILES["file"]["name"]))
      
      echo $_FILES["file"]["name"][$i] . " already exists please add another file, or change the. ";
      
    else
      
        $photo=$_FILES["file"]["name"][$i];
      move_uploaded_file($_FILES["file"]["tmp_name"],
      "upload/$photo");
      echo "Stored in: " . "upload/" . $_FILES["file"]["name"][$i];
      
    
  
else
  
  echo "Invalid file";
  

    
       $username=$_SESSION['username'];

           //register into database
            mysqli_query($con,"INSERT INTO Listing (username,Listingname,Location,nobed,zip,price,pic1) VALUES 
                ('$username','$Listingname','$Location','$nobed','$zip','$price','$photo');") or die(mysqli_error());


            echo "Listing Added";


       

    
 


else


?>

<form action="Submitlisting2.php" method="post"
enctype="multipart/form-data">
Listing Name:<br />
<input type='text' name='Listingname'><p />
Location:<br />
<input type='text' name='Location'><p />
Number of Beds:<br />
<input type='test' name='nobed'><p />
Zip:<br />
<input type='text' name='zip'><p />
Price:<br />
<input type='text' name='price'><p />


<label for="file">Pic1(File must be exceed 4mb):</label>
<input type="file" name="file[]" id="file"><br>
<label for="file">Pic2(File must be exceed 4mb):</label>
<input type="file" name="file[]" id="file"><br>
<br>
<input type='submit' name='submit' value='Submit'>
</form>

<?php





?>

尝试不循环（这会很长，尝试仅上传 2 张图片，这是我考虑循环的原因之一）

<?php
ini_set('display_errors', 1); error_reporting(E_ALL);

ob_start();
session_start();
include 'connect.php';



if ($_POST)

 //get form data



 $Listingname = addslashes(strip_tags($_POST['Listingname']));
 $Location = addslashes(strip_tags($_POST['Location']));
 $nobed = addslashes(strip_tags($_POST['nobed']));
 $zip = addslashes(strip_tags($_POST['zip']));
 $price = addslashes(strip_tags($_POST['price']));
 $username=addslashes(strip_tags($_POST[$_SESSION['username']]));

 if (!$Listingname||!$nobed||!$nobed||!$zip||!$price)
    echo "Please fill out all fields"; 
    else 
    $allowedExts = array("gif", "jpeg", "jpg", "png");
$temp = explode(".", $_FILES["file"]["name"]);
$extension = end($temp);
if ((($_FILES["file"]["type"] == "image/gif")
|| ($_FILES["file"]["type"] == "image/jpeg")
|| ($_FILES["file"]["type"] == "image/jpg")
|| ($_FILES["file"]["type"] == "image/pjpeg")
|| ($_FILES["file"]["type"] == "image/x-png")
|| ($_FILES["file"]["type"] == "image/png"))
&& ($_FILES["file"]["size"] < 400000)
&& in_array($extension, $allowedExts))
  
  if ($_FILES["file"]["error"] > 0)
    
    echo "Return Code: " . $_FILES["file"]["error"] . "<br>";
    
  else
    
    echo "Upload: " . $_FILES["file"]["name"] . "<br>";
    echo "Type: " . $_FILES["file"]["type"] . "<br>";
    echo "Size: " . ($_FILES["file"]["size"] / 1024) . " kB<br>";
    echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br>";
    


    if (file_exists("upload/" . $_FILES["file"]["name"]))
      
      echo $_FILES["file"]["name"] . " already exists please add another file, or change the. ";
      
  
    

    else
      $allowedExts1 = array("gif", "jpeg", "jpg", "png");
$temp1 = explode(".", $_FILES1["file1"]["name1"]);
$extension1 = end($temp1);
if ((($_FILES1["file"]["type"] == "image/gif")
|| ($_FILES1["file"]["type"] == "image/jpeg")
|| ($_FILES1["file"]["type"] == "image/jpg")
|| ($_FILES1["file"]["type"] == "image/pjpeg")
|| ($_FILES1["file"]["type"] == "image/x-png")
|| ($_FILES1["file"]["type"] == "image/png"))
&& ($_FILES1["file"]["size"] < 400000)
&& in_array($extension1, $allowedExts1))
  
  if ($_FILES1["file"]["error"] > 0)
    
    echo "Return Code: " . $_FILES1["file"]["error"] . "<br>";
    
  else
    
    echo "Upload: " . $_FILES1["file"]["name"] . "<br>";
    echo "Type: " . $_FILES1["file"]["type"] . "<br>";
    echo "Size: " . ($_FILES1["file"]["size"] / 1024) . " kB<br>";
    echo "Temp file: " . $_FILES1["file"]["tmp_name"] . "<br>";

    if (file_exists("upload/" . $_FILES1["file"]["name"]))
      
      echo $_FILES1["file"]["name"] . " already exists please add another file, or change the. ";
      
    
  

else

     $photo=$_FILES["file"]["name"];
      move_uploaded_file($_FILES["file"]["tmp_name"],
      "upload/$photo");
      echo "Stored in: " . "upload/" . $_FILES["file"]["name"];
      

      else
  
  echo "Pic 1 Invalid file" and die("Unable to upload pic1");
  
     
      
        $photo1=$_FILES1["file"]["name"];
      move_uploaded_file($_FILES1["file"]["tmp_name"],
      "upload/$photo1");
      echo "Stored in: " . "upload/" . $_FILES1["file"]["name"];
      


else
  
  echo "Pic 2 Invalid file" and die("Unable to upload Pic2");
  


    
       $username=$_SESSION['username'];

           //register into database
            mysqli_query($con,"INSERT INTO Listing (username,Listingname,Location,nobed,zip,price,pic1) VALUES 
                ('$username','$Listingname','$Location','$nobed','$zip','$price','$photo');") or die(mysqli_error());


            echo "Listing Added";


       



else


?>

<form action="Submitlisting2.php" method="post"
enctype="multipart/form-data">
Listing Name:<br />
<input type='text' name='Listingname'><p />
Location:<br />
<input type='text' name='Location'><p />
Number of Beds:<br />
<input type='test' name='nobed'><p />
Zip:<br />
<input type='text' name='zip'><p />
Price:<br />
<input type='text' name='price'><p />


<label for="file">Filename(File must be exceed 4mb):</label>
<input type="file" name="file" id="file"><br>
<label for="file">Filename(File must be exceed 4mb):</label>
<input type="file" name="file1" id="file1"><br>
<br>
<input type='submit' name='submit' value='Submit'>
</form>

<?php





?>

【问题讨论】：

【参考方案1】：

如果我说的是更好的用户体验，那么循环比重复上传要好得多，对于重复上传，您可以/应该使用 ajax 上传。

【讨论】：

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