UPLOAD_ERR_OK#
Value: 0; There is no error, the file uploaded with success.
其值为 0，没有错误发生，文件上传成功。UPLOAD_ERR_INI_SIZE#
Value: 1; The uploaded file exceeds theupload_max_filesizedirective in php.ini.
其值为 1，上传的文件超过了php.ini中upload_max_filesize选项限制的值。Value: 2; The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.
其值为 2，上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值。UPLOAD_ERR_PARTIAL#
Value: 3; The uploaded file was only partially uploaded.
其值为 3，文件只有部分被上传。UPLOAD_ERR_NO_FILE#
Value: 4; No file was uploaded.
其值为 4，没有文件被上传。UPLOAD_ERR_NO_TMP_DIR#
Value: 6; Missing a temporary folder.
其值为 6，找不到临时文件夹。解释“缺少临时文件夹”#
“缺少临时文件夹” 错误是由于您的Dzzoffice环境中的PHP设置不正确造成的。其中一项设置要求Dzzoffice将上传的文件存储在临时文件夹中，然后再将它们保存到所需位置。如果无法访问该临时文件夹，Dzzoffice将无法处理您上传的文件和软件更新。无论您是否意外删除了临时文件夹，当Dzzoffice无法找到或访问该文件夹时，都会发生此错误。修复“缺少临时文件夹”错误#
您需要检查 php.ini 中的一些内容。确保您点击了正确的 php.ini:upload_tmp_dir:这是 PHP 上传时存储临时文件的目录。
open_basedir:限制PHP对指定路径及其子目录的读写权限操作。 确保 upload_tmp_dir 在此路径内!
post_max_size:调大以适应您上传的尺寸。
upload_max_filesize:允许的文件大小限制。
还有种可能就是临时文件夹的权限不够。具体要怎么处理要您自行根据所使用的环境来解决，百度一下，你就知道。
UPLOAD_ERR_CANT_WRITE#
Value: 7; Failed to write file to disk.
其值为 7，文件写入失败。UPLOAD_ERR_EXTENSION#
Value: 8; A PHP extension stopped the file upload. PHP does not provide a way to ascertain which extension caused the file upload to stop; examining the list of loaded extensions with phpinfo() may help.
其值为 8，PHP扩展阻止了文件上传。PHP没有提供一种方法来确定哪个扩展名导致文件 上传停止;使用phpinfo() 检查加载的扩展列表可能会有所帮助。post_max_size#
value: The uploaded file exceeds the post_max_size directive in php.ini.
上传的文件超过了php.ini中的post_max_size指令max_file_size#
value: File is too big.
文件太大min_file_size#
value: File is too small
文件太小accept_file_types#
value: Filetype not allowed
文件类型不允许max_number_of_files#
value: Maximum number of files exceeded
超过最大文件数max_width#
value: Image exceeds maximum width
图像超过最大宽度max_height#
value: Image exceeds maximum height
图像超过最大高度min_height#
value: Image requires a minimum height
图像需要一个最小高度abort#
value: File upload aborted
文件上传失败image_resize#
value: Failed to resize image
调整图像大小失败
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