Unable to get _FILE[] set when uploading file

cleedotcom

Hi,

Array $FILE[] should contain all your uploaded file information since PHP 4.0.0. I'm using PHP 4.3.1, but not able to see $FILE[] by using phpinfo() right after clicking the "upload" button. And also couldn't find any info related to the uploaded file in $_POST[].

Here is my HTML code related:
<form enctype="multipart/form-data" action="upload_file.phtml" method="post">
<input type="hidden" name="MAX_FILE_SIZE" value="52428800">
file: <input name="File" type="file">
<input type="submit" name="submit" value="Upload">

My first suspect is that env variable FILE_UPLOADS is OFF. Unfortunately, it has been set to ON. Here is the env variables set in my PHP related to file uploading:

Directive Local Value Master Value
file_uploads On On
post_max_size 50M 8M
upload_max_filesize 50M 2097152
upload_tmp_dir no value no value

I cannot see any wrong with them. Does anyone have idea that what causes my problem. Thanks a lot.

cgraz

You mean $_FILES?

http://www.php.net/manual/en/features.file-upload.php

cgraz

cleedotcom

cgraz, thanks for reply.

Yes, that's what I meant: $_FILES.

I've read the link you attached several times before I posted the help. But didn't find any hint.

Any advice is welcome. Thanks

cgraz

echo $_FILES['File']['name'];

doesn't work? (or if globals are on)

echo $File_name;

Cgraz

cleedotcom

No, doesn't work. All is blank.

Usually, after summiting the upload, in "PHP Variables" session of phpinfo(), I would be able to see

Variable Value
_FILES["file"] Array
(
[name] => readme.txt
[type] => text/plain
[tmp_name] => /var/tmp/phpM63163
[size] => 708
)

But my case is that I even cannot find this variable FILES. So, surely I cannot see any values no matter using $FILES['file']['name'] or $file_name. Do you have idea why $_FILE is not in? Is it possible that anything wrong with the installation or configuration of PHP or Apache?

Thanks.

cleedotcom

By the way, register_globals is ON.

cgraz

$_FILES['File']['name']

is different than

$_FILES['file']['name']

Take a closer look at the name of your file input.

Cgraz

cleedotcom

Sorry, the name of the file type in my actual html code is "file".

I hope the explanation below can express my problem clearer.

I wrote a simple file upload to test (refer to listed), when I run it:

the result goes to the division of "file is not set" in upload_file.php. And in phpinfo(), $_FILES doesn't exist at all.
the result from "var_dump($_FILES);" is "array(0) { } "

upload_file.html:

<html>
<body>
<h2>Validate Uploaded File</h2>
<form method="post" enctype="multipart/form-data" action="./upload_file.php">
<table>
<tr><th><label for="uploaded_file">File:</label></th><td colspan="2"><input type="file" id="file" name="file" size="50" /></td></tr>
<tr><td />
<td><input type="submit" value="Upload" /></td>
<td />
</tr>
</table>
</form>
</body>
</html>

upload_file.php:

<?
echo "$file={". $file ."}\n";
echo "$FILES[file][name]={" . $FILES['file']['name'] ."}\n";
echo "$file_name={" . $file_name ."}\n";

if (!isset($file) || $file == "none")
{
echo "file is not set";
phpinfo();
}
else
{
echo "Wonderful";
phpinfo();
}

var_dump($_FILES);
?>

cgraz

<? 
echo "$file={". $file ."}<br>"; 
echo $_FILES["file"]["name"] . "={" . $_FILES["file"]["name"] ."}<br>"; 
echo "$file_name={" . $file_name ."}<br>"; 

if (!isset($file) || $file == "none") 
{ 
echo "file is not set"; 
phpinfo(); 
} 
else 
{ 
echo "Wonderful"; 
} 

?>

Works fine for me. It outputs

/tmp/phpxUpjRc={/tmp/phpxUpjRc}
arrow.gif={arrow.gif}
arrow.gif={arrow.gif}
Wonderful

My guess is you should use $HTTP_POST_FILES rather than $_FILES

and if globals are on, you could also just use

<? 
echo "$file={". $file ."}<br>"; 
echo $file_name . "={" . $file_name ."}<br>"; 
echo "$file_name={" . $file_name ."}<br>"; 

if (!isset($file) || $file == "none") 
{ 
echo "file is not set"; 
phpinfo(); 
} 
else 
{ 
echo "Wonderful"; 
} 

?>

Cgraz

cleedotcom

upload_file.html & upload_file.php I posted also work fine in our other servers. Only got problem in the server I'm currently working with. That's why I strongly suspect something wrong with the configuration of PHP or Apache.

I cannot use or find $HTTP_POST_FILES as well which might because i'm using php 4.3.1

register_globals is ON. I'm able to retrieve all other types of variable, like "text", as global, except file type.

Any idea? Thanks

cgraz

yeah if you're on 4.3x then $_FILES should work. If it's not, then I don't know what you could do. I'm only vaguely familiar w/setting up php. Don't know what could cause something like this.

Cgraz

cleedotcom

Hi, settled the problem, finally.

The trick is: set upload_tmp_dir.

A likely explanation about this I found in Internet is, before php 4.3.0, if upload_tmp_dir is not set, the temporary file during the upload will be put into system default temp dir or somewhere like /var/tmp. But since 4.3.0, nothing happens.

Hope this info can help somebody.