如何在PHP中查看$\u文件数组中的错误消息

我正在使用多文件上载功能，当我将文件数组打印为以下格式时，会出现错误：

  print_r($_FILE);

获取错误为：

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

我没有看到错误描述，错误仅限于此

[error] => 1

上载\u错误\u INI\u大小 价值：1；上载的文件超出了php.ini中的upload\u max\u filesize指令

希望对您有所帮助

上载\u错误\u INI\u大小 价值：1；上载的文件超出了php.ini中的upload\u max\u filesize指令

希望对您有所帮助

您可以通过错误代码找到说明

您的情况是：

上传的文件超过了php.ini中的upload\u max\u filesize指令。

您可以通过错误代码找到描述

---

在您的情况下是：

上载的文件超过了php.ini中的upload\u max\u filesize指令。

基于

$\u FILES['userfile']['error']

值，您可以在ref文档中打印相应的错误消息

使用相应的错误键值在某个数组中添加所有错误消息。基于上载期间从

$\u文件

接收到的错误键值，并显示相应的错误消息[下面添加的链接]

已解释错误消息：

误差值：1；上载的文件超出了php.ini中的upload\u max\u filesize指令

---

有关更多信息&Ref:

根据

$\u文件['userfile']['error']

值，您可以在Ref文档中打印相应的错误消息

使用相应的错误键值在某个数组中添加所有错误消息。基于上载期间从

$\u文件

接收到的错误键值，并显示相应的错误消息[下面添加的链接]

已解释错误消息：

误差值：1；上载的文件超出了php.ini中的upload\u max\u filesize指令

---

有关详细信息&Ref:

您可以使用此阵列显示：

---

您可以使用此阵列显示：

---

谢谢@Danijel的详细回答谢谢@Danijel的详细回答

$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']];