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This article focuses on "how to understand the error return value in PHP $_ FILES". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let the editor take you to learn "how to understand the error return value in PHP $_ FILES"!

$_ FILES ['file'] [' error'] value

UPLOAD_ERR_OK: 0 / / normal, uploaded successfully

UPLOAD_ERR_INI_SIZE: 1 / / the uploaded file size exceeds the maximum allowed for uploading by the server, and the upload_max_filesize option limit is set in php.ini.

UPLOAD_ERR_FORM_SIZE: 2 / / upload file size exceeds the value specified by the hidden field MAX_FILE_SIZE option in the HTML form

UPLOAD_ERR_NO_TMP_DIR: 6 / / No temporary folder cannot be found

UPLOAD_ERR_CANT_WRITE: 7 / / File write failed

UPLOAD_ERR_EXTENSION: 8 / / the php file upload extension is not open

UPLOAD_ERR_PARTIAL: 3 / / only part of the file is uploaded

The copy code is as follows:

Switch ($_ FILES [$field] ['error']) {

Case 1:

/ / the file size exceeds the space size of the server

This- > setError ("The file is too large (server).")

Break

Case 2:

/ / the file size to be uploaded exceeds the browser limit

This- > setError ("The file is too large (form).")

Break

Case 3:

/ / only part of the file is uploaded

$this- > setError ("The file was only partially uploaded.")

Break

Case 4:

/ / No file was found to upload

$this- > setError ("No file was uploaded.")

Break

Case 5:

/ / the server temporary folder is missing

$this- > setError ("The servers temporary folder is missing.")

Break

Case 6:

/ / error writing file to temporary folder

$this- > setError ("Failed to write to the temporary folder.")

Break

}

At this point, I believe you have a deeper understanding of "how to understand the error return value in PHP $_ FILES". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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