$_FILES Empty When Uploading

Question

When trying to access the $_FILES array, PHP returns the error

"Undefined index: picture".

In my php.ini file, File Uploads are turned on, and any user can write in the /tmp directory. In the HTML form, enctype is set to "multipart/form-data". Interestingly enough, the basename for the uploaded file prints so I believe that PHP has actually seen the file, but has some problem uploading it. Can someone provides suggestions on potential solutions to this problem? By the way, I am using PHP5.

Snippets from PHP File

echo "Picture=" . $_POST['picture'] . "<br/>";
$uploadedPic = $_FILES['picture']['tmp_name'];

HTML Form

<form action="PHPFile.php" method="post" enctype="multipart/form-data">

<p> Picture </p>
<input type = "file" id="picture" name="picture"/>

</form>

Are you by any chance using Javascript to serialize your form? — JorenB
– JorenB, Commented Aug 28, 2009 at 10:57
is post_max_size and upload_max_filesize in your php.ini set to a large enough value? — Zed
– Zed, Commented Aug 28, 2009 at 11:04
I used print_r to print the contents of the $_FILES array, and it printed an empty array. For some awkward reason, it works now. All I had to do was restart the server. I did not change any settings whatsoever, and the file is less than 40KB. Thank you for all of your help! — Paradius
– Paradius, Commented Aug 29, 2009 at 20:57
I recently just had this issue and it was because I forgot to add enctype="multipart/form-data" to the form declaration, I see you didn't but in case anyone else gets here. — Nick Pickering
– Nick Pickering, Commented Dec 5, 2012 at 22:35

halfer · Accepted Answer · 2024-09-19 06:14:24Z

6

On what line do you get that warning? If it is the one with $_POST['picture'], then it's logical, you won't find uploaded file data in $_POST, it is in $_FILES.

edited Sep 19, 2024 at 6:14

halfer

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answered Aug 28, 2009 at 11:03

Anti Veeranna

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1 Comment

SeanJA Over a year ago

On a sidenote.... you will want to check if the $_SERVER['REQUEST_METHOD'] == 'POST' if you are just uploading a file in your form and not submitting any other data

Steerpike · Accepted Answer · 2009-08-28 11:08:35Z

1

echo "Picture=" . $_POST['picture'] . "<br/>";

The POST variable

$_POST['picture']

doesn't exist, so yes, it's going to give an undefined error.

answered Aug 28, 2009 at 11:08

Steerpike

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Comments

swille · Accepted Answer · 2012-02-26 23:34:01Z

0

lol, a previous poster said that restarting their server fixed it. i did the same, and for some reason it works. i made no code changes, and IIS resets didn't work either. it required a reboot of the computer itself. that's about 2hrs completely lost.

answered Feb 26, 2012 at 23:34

swille

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Comments

NorthCat · Accepted Answer · 2014-08-20 18:13:01Z

0

What level or error reporting are you using? error_reporting(E_ALL) will turn on full reporting and might give you a hint. As previously described, do a print of $_FILES with var_dump() or print_r() to see information for your file.

edited Aug 20, 2014 at 18:13

NorthCat

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answered Aug 28, 2009 at 11:17

user164805

Comments

NorthCat · Accepted Answer · 2014-08-20 18:13:47Z

0

I can't comment, so I'll say it here.

MAN, this echo will print the file name! It works! He said it works.

Interestingly enough, the basename for the uploaded file prints so I believe that PHP has actually seen the file[...]

A good hint: try to var_dump the $_FILES and add here it's contents. You may have an error because the file is too big, or some other useful information.

edited Aug 20, 2014 at 18:13

NorthCat

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answered Aug 28, 2009 at 11:12

igorsantos07

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Comments

dir01 · Accepted Answer · 2009-09-13 13:21:42Z

-2

try adding

<input type="hidden" name="MAX_FILE_SIZE" value="30000" />

before

<input type = "file" id="picture" name="picture"/>

answered Sep 13, 2009 at 13:21

dir01

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