PHP文件上传错误的情况 [英] PHP file upload error conditions

问题描述

我正在尝试创建一个配置文件编辑设置。似乎只有在图像上传时才能编辑信息。我发现允许错误消息是一个条件允许一些更多的操作，所以我现在尝试它，我的条件声明不工作，因为它应该。

  if（$ _ FILES ['files'] ['error'] == 0）{
 
 print_r（$ _ FILES ['files'] ['error']）; 
回显if; 
 
 foreach（$ _ FILES ['files'] ['name'] as $ file => $ name）{
 $ filename = $ name; 
 $ b尝试{
 if（move_uploaded_file（$ _ FILES ['files'] ['tmp_name'] [$ file]，'uploads /'.$ filename））{
 $ updateInfo = $ db-> prepare（UPDATE users SET image =：image，aboutme =：aboutme WHERE id =：id）; 
 
 $ updateInfo-> bindParam（：image，$ filename）; 
 $ updateInfo-> bindParam（：id，$ _SESSION ['user'] ['id']）; 
 $ updateInfo-> bindParam（'：aboutme'，$ aboutme）; 
 
 $ updateInfo-> execute（）; 
 
} catch（Exception $ e）{
 echo $ e; 
} 
} 
} elseif（$ _ FILES ['files'] ['error'] == 4）{
 print_r（$ _ FILES ['files'] ['error ]）; 
回声Elseif; （b 
 
 
 
 
 
 
 
 
 
 
 
 
 $ b $ $ b WHERE id =：id 
）; 
 $ updateInfo-> bindParam（'：id'，$ _SESSION ['user'] ['id']）; 
 $ updateInfo-> bindParam（'：aboutme'，$ aboutme）; 
 
 
 $ updateInfo-> execute（）; 
} catch（Exception $ e）{
 echo $ e; 
} 
} else {
 print_r（$ _ FILES ['files'] ['error']）; 
 echoelse; 
 
 code 
 
 
 
 
 
 
 
 
 
 
 $ b $ p 
 
 
 $ b 
当我检查发送数组时，它是正确的，但错误的条件，即：无论文件检查，它都会运行else语句。
 
 
我的问题： 
 
 
 
我的代码有什么问题，除了任何安全或效率的缺陷？
 
解决方案
 $ _ FILES ['files'] ['error']与文件数组一起返回错误代码。有不同类型的错误代码，所有的代码在下面的链接中提到细节：
 
 
请检查
 
 
 
 
 print_r（$ _ FILES ['files']）
 
看看你有什么回应。当你发布你的数组响应时，你可以通过$ _FILES ['files'] ['error'] [0]得到错误代码，或者像上面提到的那样使用switch case以下链接。
 
 
 
详情请看这里：
  http://php.net/manual/en/features.file-upload.errors.php  
 
 
 
关于调试，总是从上到下逐步调试代码。检查$ _POST，$ _FILES，$ _SERVER等详细信息，如果您遇到与数据处理有关的特定问题。
 
I am trying to create a profile editing setup. It seems as though the information is edited only when an image is being uploaded. I found out that allowing the error message to be a condition allows for some more manipulation so I attempted it now my condition statement is not working as it should.
if($_FILES['files']['error']==0) {

    print_r($_FILES['files']['error']);
    echo "if";

    foreach($_FILES['files']['name'] as $file => $name) {
        $filename = $name;

        try{
            if(move_uploaded_file($_FILES['files']['tmp_name'][$file],'uploads/'.$filename)) {
                $updateInfo = $db->prepare("UPDATE users SET image       = :image, aboutme     = :aboutme WHERE id = :id");

                $updateInfo->bindParam(":image", $filename);
                $updateInfo->bindParam(":id", $_SESSION['user']['id']);
                $updateInfo->bindParam(':aboutme', $aboutme);

                $updateInfo->execute(); 
            }
        } catch(Exception $e) {
            echo $e;
        } 
    }
} elseif($_FILES['files']['error'] == 4) {
    print_r($_FILES['files']['error']);
    echo "Elseif";

    try{
        $updateInfo = $db->prepare("
        UPDATE users
        SET 
            aboutme     = :aboutme

            WHERE id = :id
        ");
        $updateInfo->bindParam(':id', $_SESSION['user']['id']);
        $updateInfo->bindParam(':aboutme', $aboutme);


        $updateInfo->execute();
    } catch(Exception $e) {
        echo $e;
    } 
} else{
    print_r($_FILES['files']['error']);
    echo "else";
}
}

When I check what array is being sent, its the correct one but the wrong condition, ie: it would run the else statement no matter the file check.

My question:

Is there something wrong with my code, with the exception of any security or efficiency flaws?
解决方案
$_FILES['files']['error'] returns error code along with the file array. There are different type of error codes, all codes are mentioned in following link with details:

Please check by 

  
print_r($_FILES['files'])
and see what are you getting in response.

As you posted your array response, you can get error code by  $_FILES['files']['error'][0] or use switch case as mentioned in following link.

See here for more details:
http://php.net/manual/en/features.file-upload.errors.php

Also regarding debugging, always debug code step by step from top to bottom. Check $_POST, $_FILES, $_SERVER etc details if you get some problem particular related to data process.

                        
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