如何在 PHP 中查看 $_FILE 数组中的错误消息答案

【问题标题】：How to see the error message in $_FILE array in PHP如何在 PHP 中查看 $_FILE 数组中的错误消息
【发布时间】：2013-12-30 07:24:05
【问题描述】：

我正在开发多个文件上传功能，当我将文件数组打印为时出现错误：

  print_r($_FILE);

得到错误：

Array
(
   [name] => _agiewniki_Forrest_in_Autumn.jpg
   [type] =>
   [tmp_name] =>
   [error] => 1
   [size] => 0
)

我没有看到错误描述，错误只有这个

[error] => 1

【问题讨论】：

标签： php cakephp file-upload

【解决方案1】：

你可以使用这个数组来显示file-upload error messages：

$error_messages = array(
    UPLOAD_ERR_OK         => 'There is no error, the file uploaded with success',
    UPLOAD_ERR_INI_SIZE   => 'The uploaded file exceeds the upload_max_filesize directive in php.ini',
    UPLOAD_ERR_FORM_SIZE  => 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form',
    UPLOAD_ERR_PARTIAL    => 'The uploaded file was only partially uploaded',
    UPLOAD_ERR_NO_FILE    => 'No file was uploaded',
    UPLOAD_ERR_NO_TMP_DIR => 'Missing a temporary folder',
    UPLOAD_ERR_CANT_WRITE => 'Failed to write file to disk',
    UPLOAD_ERR_EXTENSION  => 'A PHP extension stopped the file upload',
);

// prints "The uploaded file exceeds the upload_max_filesize directive in php.ini"
echo $error_messages[$_FILES['error']];

【讨论】：

感谢@Danijel 提供如此详细的答案

【解决方案2】：

http://www.php.net/manual/en/features.file-upload.errors.php

UPLOAD_ERR_INI_SIZE 值：1；上传的文件超过了 php.ini 中的 upload_max_filesize 指令。

希望能帮到你

【讨论】：

【解决方案3】：

Here你可以通过错误代码找到描述

在你的情况下是：The uploaded file exceeds the upload_max_filesize directive in php.ini.

【讨论】：

【解决方案4】：

基于$_FILES['userfile']['error'] 值，您可以在参考文档中打印相应的错误消息。

将某个数组中的所有错误消息与相应的错误键值相加。根据上传过程中从$_FILE收到的错误键值，并显示相应的错误消息[链接添加在下面]。

错误信息解释：

错误值：1；上传的文件超过了 php.ini 中的 upload_max_filesize 指令。

【讨论】：