asked on

Issue with file uploads

Hi all;

I am trying to add a file submission aspect to a submission form, but I cannot get uploads to confirm they are uploaded:

---------------FORM-----------------------

<input type="hidden" name="MAX_FILE_SIZE" value="2048">
<input name="File" type="file" size="50">

----------------/FORM----------------------

---------------CODE------------------------

if (isset($_FILES['File']['name']))
{
echo("File Uploaded\n");
print_r($_FILES['File']);
}
else
{
echo("no File Uploaded\n");
print_r($_FILES);
}

---------------/CODE---------------------------

-------------OUTPUT---------------------------
no File Uploaded
Array ( )
--------------/OUTPUT------------------------

Now I am new to file uploading, so maybe I am checking the wrong thing.
PHP is 4.2.2 on Apache 2, I will also need to check that the file is a zip file, not interested in uploads of anything else and will want to reject non-zip uploads.

Thanks all, big points cause I want a quick answer.

ASKER CERTIFIED SOLUTION

Fendrin

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Squeebee

ASKER

Ok, so far so good, I can check against error being 0 and I get a "File Uploaded" report. Now how can I check if the upload was a zip file?

SOLUTION

red010knight

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Squeebee

ASKER

Hmm, any way to avoid an extension spoof there? Ie can we check for a zip file by a method other then trusting the extension?

helloAmerica

of course you can.

it's call "using magic numbers" (in clear, analysing the header of the binary file, like "PDF", "JPG" etc to deduce the real datafile type)

helloAmerica

and I think you should RTFM about "uploading files" in the PHP online manual

Squeebee

ASKER

I actually will just go with the extension check for now, as I have to approve posts anyway. Thanks for your help Fendrin and Red.

Fendrin

No Problem, I like to help. Thanks for the A! btw, for type checking, try $FILES['file']['type'] to get the mime type.

btw, all of my answers are right in the manual: http://www.php.net/features.file-upload