PHP :: FIle Uploads: Empty _POST And _FILES Arrays When File Too Large

Large File Uploads
I've got a client who wants to allow his clients to upload 100MB files thru HTTP. He also wants a progress meter. I'm using the megaupload progress meter, minus the 5MB filesize limit. I've also set my apache transfer timeout to a ludicrously high number, and in php.ini I've set upload_max_filesize, max_execution_time, max_execution_time, etc to values that should allow for large file uploads.

I can upload files of several MB, but w/ anything larger, either the transfer hangs or $HTTP_POST_FILES is empty for the processing script. megaupload uses some perl/cgi code to handle the post data and show the progress meter, but I looked thru it carefully and nothing in there seems to be likely to cause a problem. Can anyone give me advice on what else I should look into? This is driving me NUTS...

Handling Large File Uploads
I'm having some trouble with handling large PHP uploads from a form. I have <input type="hidden" name="MAX_FILE_SIZE" value="20971520"> in the form, so it should have no problem handling file uploads up to 20 Megs.

However, whenever I upload a file any larger than about 8 or 9 Megs, it outputs a "Cannot Find Server" error to the browser (tried it with IE5.5 and NN4). Some directives in the PHP.INI file have also been set to try and curb this error:

upload_max_filesize = 22020096 ; 21 Meg limit on file
max_execution_time = 600 ;600 seconds for max. script
memory_limit = 29360128 ;28mb to accomodate larger file
post_max_size = 23068672 ;22 Meg Max post *added*

php version is: PHP 4.1.2-3

Large File Uploads (100MB) With PHP/Oracle
Quick question about large file uploads with PHP/Oracle. I've been assigned to work on a project where I'm going to build a PHP front-end to an Oracle back-end. This all centres around E-Learning, and I'll need to allow people to upload Learning Objects (ie., video files, audio files, text documents, PowerPoint presentations, etc.) which will be inserted into the database as BLOBs, and then also allow people to group the Objects together into courses which could then be accessed.

What scares me is the fact that some of these objects could be up to, or more than, 100MB in size. Has anyone here done any work with handling the upload of such large files with PHP? Obviously I would need to alter the upload_max_filesize and max_execution_time values in php.ini to accomodate for this, but I'm wondering how well http uploads will actually work with objects of up to, or more than, 100MB.

Uploads An Image File And Moves It To A New File Name
I am having trouble making PHP web page that uploads an image file and
moves it to a new file name. The problem occurs when the new filename
already exists.

I am using move_uploaded_file().

The fist time an image file is uploaded and moved to a new file name
there is no problem, however if I decide to upload a different image...

I Can Not Get File Uploads To Show Up When I Upload A File
I've a form that starts off like this:

<form method="post" action="profile.php?
id=5&formName=my_story_edit.htm" enctype="multipart/form-data">

<p>Email address:<br />
<input type="text" name="totalFormInputs[users][5][email_address]"
value="lawrence@krubner.com" /></p>

<p>Zip code:<br />
<input type="text" name="totalFormInputs[users][5][zip_code]"
value="22902" /></p>

<p>Personal image:<br />
<input type="file" name="totalFormInputs[users][5][upload_file]" /></
p>

Oddly enough, the "upload_file" has suddenly disappeared from the
uploaded array. When I hit $totalFormInputs with print_r, this is what
I get:

Array
(
[users] =Array
(
[5] =Array
(
[description] =I grew up in New Jersey.
[email_address] =lawrence@krubner.com
[zip_code] =22902
[time] =1187380627
)

)

)

PHP File Upload Unexpected Error - File Too Large?
I have a short basic script to upload files. It works fine with small files,
but with longer files it gets stuck.

Here's the fragment, the input file is loaded in "$file" from an HTML form
as usual.

....
$img_str = fread(fopen($file, "r"), filesize($file));
$data = addslashes($img_str);
// --------------------- up to here the execution is correct and fast (<1
second)

$sql="INSERT INTO $table (".
" file_name,".
" file_type,".
" file_size,".
" bin_data)".
" VALUES (".
" '$file_name',".
" '$file_type',".
" '$file_size',".
" '$data')";
// --------------------- it gets stuck
here!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
mysql_query($sql) or die ("SQL error ..$sql");

I have already set the php.ini variables as follows:
memory_limit = 16M
upload_max_filesize = 6M

I also checked the execution time to max_execution_time = 300 (even though I
don't believe it should be necessary).
The server is a P4 1.8 GHz, 256MB RAM

From POST To GET: $_FILES Empty
I'm passing the code from $_POST to $_GET.

I've a page upload using $_FILES. when the page was in $_POST, it worked
fine, but now, in $_GET, the $_FILES is empty.

Can't Upload File To $_FILES
I'm trying to figure out why I can't upload a file in php.
I'm trying it locally on a windows XP machine running Apache 2.2 and
PHP 5.2.1.
That is I am running the browser/server on same machine to test with.
I also tried it on a remote linux server, though in that case I'm not
sure what the s
config settings where, except that it does have PHP and I get the same
results.

Are there any releevant apache settings ? I have not come accross any.

Below is my script, results, and config settings.

=------------------------------------------------------

<html>

<body>

<?php

if ($_SERVER['REQUEST_METHOD'] == 'GET') { ?>
<form enctype="mutlipart/form-data" method="post" action="<?php echo
$_SERVER['SCRIPT_NAME'] ?>" >
<input type="file" name="document"/>
<input type="submit" value="Send File"/>
</form>
</body>
</html>
<?php }
else
{
echo "FILE=";
print_r($_FILES);
echo "</br></br>POST=";
print_r($_POST);
}

--------------------------------------------------------

on a post I get an empty $_FILES object and something in the $_POST
variable from the above prints:

FILE=Array ( )

POST=Array ( [document] =feedblitz.txt )

# my php config file has these settings which I also verified with
phphinfo()

; Whether to allow HTTP file uploads.
file_uploads = On

; Temporary directory for HTTP uploaded files (will use system default
if not
; specified).
upload_tmp_dir = "c:playsoaptest";

; Maximum allowed size for uploaded files.
upload_max_filesize = 5M

Write To File Sometimes Deletes EVERYTHING, Leaving Empty File
I've used PHP to save raw data from Flash to an XML in the past. Load the XML into flash, update a couple variables, then send it to PHP to completely overwrite the old .xml file. This works great most of time, but sometimes after a few days, I'll check the .xml and it will be empty (0 bytes).

Not sure if this is caused by a user who aborted during the writing process, or simultaneous connections, etc. Been thinking about doing a backup every day using CRON, but that's a mission and I'd like for it not to happen full stop. Any suggestions?

$_FILES['File']['type'] Returns Nothing
I have an MP3 Upload site, but when a user logs in and uploads a file, more than half of the time the MP3's MIME type returns absolutely nothing!

I don't think it's the code, because some of the music uploads well, it's just about 65% has no MIME! Any explanation?

File Field Validation $_FILES??
I have the following code that validates my form fields. I have a file field called file that I cant figure out how to validate. Code:

File Upload Works But Only For Empty File
I can upload a file as long as it is empty (thanks Hendri Kurniawan).
I do not know where to look.

Can someone help me understand what I need to do to upload a small image.
http://chops.novatrope.com/game/test/upload_file3.php

Here is some more info http://chops.novatrope.com/info.php

Help With File Uploads
I'm trying to set up a page to do file uploads and I keep running into
problems.

Here's my source code for the page (minimally modified from the source
code in a book):

File Uploads With PHP
I'm writing an uploading page for a website I'm working on. This
website will hopefully allow users to upload files of up to 100MB in
size. The web administrator has increased all the limiting variablies
in php.ini such as:

post_max_size = 150M
upload_max_filesize = 150M
max_execution_time = 600

MAX_FILE_SIZE within the uploading form is also set to 150MB.

However if I try to upload a file greater then 20MB from a PC within
my companys office i get an error message saying that the request is
too large for our web cache. I'm also told that if other users have a
web cache between them and their internet connection they could
experience the same problem.

Does anyone know a way round this problem? Is it possible to bypass
the web cache somehow so that this dosent happen?

File Uploads
I have built a form that handles file uploads for my site. My prblem is that it works very eratically. It seems that it will not upload certain file types like jpg files and the ones it does allow to be uploaded will work sometimes and then not others. I cannot get this to work on a consistent basis! code:

File Uploads
I have a file upload script. I have everything working fine. But when I test it out I can't find the uploaded file. I looked in /var/tmp/ but nothing of the sort is there. How can I direct the upload to do to a folder of my choice?

PHP 4.2.0 And File Uploads??
When using the new $_FILES var how do you use it for multiple uploads. Does it become a 3 dimensional array or not?? Say if I were to find the name of file number 3 in my upload would I do it like this? PHP Code:

PHP File Uploads
I am transferring an admin from the server it was developed to the server where it will be hosted. On this new server I am having permission issues. If I change the permission of the target directory to 0777 (using my ftp program), I can upload the file to that directory. The file uploads with it's permission set to 0511, by default (I assume as I am not setting it anywhere). Now the problem is deleting or overwriting the file. I try to change the permission on the file to 0777 to delete or overwrite it using chmod with no luck.

Safe mode is off on the new server so to the best of my knowledge the problem is most likely the user or group settings. After hours of research I came across what I thought could be the solution, "umask". I've tried this unsuccessfully a number of ways. So I guess the question is how would I use umask, and if umask is even a solution. Thank you again for looking into this. Below is my upload code for refrence, without using umask. Code:

File Uploads
I always set the permissions on the folder they are getting uploaded into to (777). Is this safe, or is there another setting that would be more secure, that is more recommended. THat will still allow files to be put in the folder by posters, accessed by viewers, and deleted by admin. Is there a better setting than 777.

Help With Str_replace & $_FILES Arrays Need To Loop?
Ok I am trying to get these loops figured out

I have 10 files being uploaded- $_FILES['pic1-10']

I need to run str_replace on all 10 to eliminate any oddities " ","%20"
to clean up the filenames before inserting names in db.

foreach ($_FILES as $n) {
$name=$n["name"]
str_replace( " ", "",$name)

now how do I get it read back into $_FILES['pic1']['name'] and continure on
to pic2?

File Uploads - Advanced
Is is possible to tell the OS what type of file to browse for?

By default the 'Files of type' is 'All Files *.*'

I'd like to set this so that it defaults to JPG file types.

Multiple File Uploads
I have a form that has a few file fields, and when submit is clicked, they all get uploaded. But when a field is left blank, everything screws up. I though using an if statement would work, like PHP Code:

File Uploads & Security
I have created a passworded "Control Panel Area" for a site owner to manage the site through a limited CMS. One feature that I added was for the owner to upload files through a script I downloaded and modified.

The script will upload files to a folder (chmod 777). These files need to be accessed by the general public. I believe it is not wise to have a folder set with these permissions in a non-restricted area (?). The files are currently not available since they are located in the "Control Panel".

What would be the best approach to making these files available to all?

Current setup:

/control/ (passworded folder)
/control/files/ (uploaded files: chmod 777)

PHP File Uploads Not Working.
It seems my file uploads arnt working, ive taken snippets from a working script to do the following:

copy($_FILES['userfile']['tmp_name'], $imageDIR.$_FILES['userfile']['name'])or die("Could not copy");

I have various tests surrounding that snippet confirming submission of the file etc reports no errors, just wont upload the file to temp dir or the one i set as copy location. Changed and check php temp file dir and nothing is loaded in there either.

Multiple File Uploads?
I'm wondering if there is a way to upload multiple files at the same time into a directory.

File Uploads And Upload_tmp_dir
When I was using /usr/tmp to keep the temp uploaded files,
move_uploaded_file used to fail randomly. Since I created a directory
owned by nobody:nobody (my apache user) and set upload_tmp_dir to it, I
don't have any problems. Any idea why /usr/tmp as temp upload directory
created this kind of mess? It's not a quota problem.

PHP, CURL, And File Uploads
I am trying to write a script that makes cURL submit the following form:

<form method="post" action="script.php" enctype="multipart/form-data">
<input type="file" name="somefile">
<input type="submit" value="Send File">
</form>

I've found a few examples of how to do this, but they all require me
creating a file first. I have the data I would like to submit in a PHP
variable, and for security reasons, I would prefer not to write this to
a file.

File Uploads Not Working
I am trying a simple file upload, but cannot make it work on my
localhost. I wrote the following code:

$strFileDir = "/images/gallery/";
$strFileName = $strFileDir . $_FILES['fImage']['name'];
if (move_uploaded_file($_FILES['fImage']['tmp_name'],$strFileName));
{
echo ("Success");
}

....but get the following errors when uploading "gallery_1.gif":

Warning: move_uploaded_file(/images/gallery/gallery_1.gif): failed to
open stream: No such file or directory in
C:DevelopmentChasityChase.comwwwadminimageim age.php on line 16

Warning: move_uploaded_file(): Unable to move
'C:PHPuploadtempphpE4.tmp' to '/images/gallery/gallery_1.gif' in
C:Development[sitename]wwwadminimageimage.php on line 16
/images/gallery/gallery_1.gif

I am working in Windows XP Pro/IIS, in case you couldn't tell.

Authenticated File Uploads
I've got a requirement that a group of users should be able to upload
files to an area on my system. I want these users to be authenticated by a
php form secured by ssl. Each user will have an Email address in an include
file, and when the file upload is complete an email will be sent to that
user and to myself alerting that a file has been received. Does anyone have
such a configuration? I'd like to do this without a database if possible, my
needs are not that elaborate.

Problems With File Uploads
I've written the following sourcecode:

<form action="test.php" method="POST" enctype="multipart/form-data">
<input type="file" name="datei">
<input type="submit">
</form>

// test.php
<?
echo $datei_name; // No output.
echo $_FILES['datei']['name']; // No output.
?>

Handling PHP File Uploads With FTP?
I'm making a form to upload a file. I haven't put in the restrictions yet, I'll do that when the form is actually working... But the problem is my php server has a file size limit, so I want to use ftp_put to move the file to another server. I tested the other server with a simple ftp_put test yesterday, so I know it works... So now, I want php to assign a random number to the end of the new filename, and send it over to the new server. Code:

Corrupted File Uploads
i have a php upload script which is used to upload files for processing,
the thing is that these files are received from various places which are couriered and there for sometimes can come in with corrupted files,

is there anyway for php to test if a file is corrupt so it skips the file upload?

Security Isuses With File Uploads
Is There a secure way to do file uploads using php?

Progress Meters For File Uploads
I was wanting, or hoping to find out wheter or not it is possible to create a dynamic progress meter for wbe based FTP applications.

So that when you upload a file to the web-server, a small window appears refreshing with the progress of the file being uploaded to the server.

The progress meter would not require to be graphical it could just be a number count in percent etc.

File Uploads With Php In Safe Mode
I wrote some code that handles file uploads with php in safe mode, but it raises some questions and I'm not sure if I like it or not. So I would appreciate some advice or answers to this:

A host runs PHP in safe mode which prevents using copy() for file uploads. Instead I could use system() or exec() to move/copy the file to the desired destination. But since I prefer letting PHP handle this stuff, I decided to try using move_uploaded_file() to see what would happen. And that worked...
Which made me wonder why I could move a file, but I couldn't copy it. Shouldn't it be the other way around? Some extracted code:

$upfile is the filename from the upload form
$newfilename is the desired new filename concatenated with the desired path

// This will not work if PHP is in safe mode
if (copy($upfile, "desiredpath/" .$newfilename)) {
// OK! }

// But this will work if PHP is in safe mode
if (move_uploaded_file($upfile, "desiredpath/" .$newfilename)) {
// OK! }

I didn't explore how to use system() or exec() to move/copy the file, but could someone shed some light on how/why to use that instead? And what's the file rights difference between copy and move in this case?

A Script To Handle File Uploads Or Ftp
I can write a simple PHP script that will accept file uploads from a user submitted HTML form. Then have the script rename and move the file to a specific directory.

why then, or when would, i need to use FTP? I guess I'm not very familiar with the protocol.

File Uploads - Starting From Scatch
I'm interested in learning how to do file uploads. I have basic php knowledge, but am completely unfamiliar with how to get this done. Are there any good tutorials on teh subject, or would anyone be able to provide the basics here?

Directories, CHMOD, And File Uploads
1) Is the only way that doesn't involve Databases to upload files is to CHMOD a directory to 777?

2) What are the risks of CHMODDING a directory to 777?

3) What are the risks of CHMODDING a .txt file to 777?

4) How can I find the name of every .txt file in a directory?

File Upload Issue - Unable To Upload A Large File
I am using PHP Version 4.4.3 under Linux/Apachie to upload files.
The PHP.ini upload_max_filesize is 2M, which I need to override this
in the HTML (see below). I changed the MAX_FILE_SIZE to 4,000,000
but the system only accepts files less than 2M.

Is the override wrong, do I need to raise the limit in the PHP.ini
file, or is the Apachie issue.

<form name="upload" action="admin.php" method="post"
enctype="multipart/form-data">
<input type="hidden" name="MAX_FILE_SIZE" value="4000000">

Trying To Enable File Uploads On A PERDIR Basis
PHP v.5.0.4, Apache 2.0.4, Fedora Core 4 (SELinux)

In php.ini:

file_uploads = Off
upload_max_filesize = 2M

In httpd.conf:

<Directory "/some/dir">
AllowOverride All
</Directory>

In "/some/dir" .htaccess (chmod 644):

php_flag file_uploads on
php_value upload_max_filesize 4M

The result:

file_uploads = Off within "/some/dir/"
upload_max_filesize = 4M within "/some/dir/"

I've tried:

<Directory "/some/dir">
AllowOverride All
php_flag file_uploads on
</Directory>

in httpd.conf, and:

<IfModule mod_php5.c>
php_flag file_uploads on
</IfModule>

in both httpd.conf and .htaccess, but I just can't get file_uploads enabled on a PERDIR basis.

Also tried php_flag file_uploads 1 and php_flag file_uploads "1" and php_value file_uploads "On" in all of the above scenarios with no joy.

Does PHP v.5.x never allow file_uploads on a PERDIR basis? I noted in the docs that it was allowable on a SYSTEM basis, which is why I figured I'd try the httpd.conf hack, to no avail.

Large SQL File
How can I load a 1.2gb SQL file into phpmyadmin?

Revise And Repost: Question About Curl And File Uploads
last time I posted, I must have been totally unclear :) Hopefully
this clears things up:

I wrote the following script that uses Curl to mimic submitting a form
over SSL with <input type='file'>. It works well, but for security
reasons, I would like to not have to write the necessary data to a
temporary file.

// Write the batch file to a temporary file
$filename = "batchtemp" . time() . ".tmp";
// We will use curl to send this file for processing
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_URL, "https://www.example.com/");
curl_setopt($ch, CURLOPT_POSTFIELDS, array("batchFile"=>"@$filename));
// Write $batchFile to the temporary file.
if (!$file = fopen($filename, "w")) { echo "Cannot open file
($filename)"; exit; }
if (fwrite($file, $batchFile) === FALSE) { echo "Cannot write to file
($filename)"; exit; }
fclose($file);
// Send the data
$txResult = curl_exec($ch);
// We're done with the temp file, and curl.
unlink($filename);
curl_close($ch);

Storing BINARY File Uploads Into A Mysql Database
I know I do a column with a BLOB of size of the max file size I guess...
then I tell php to do: fopen($FILE,'rb'); fread($file,1024); (loop) then I send the info to the db???

How would I download the file later then, would I have to write it to a fiel first? or could I ouptu it to the browser if I supply , content-type: binary?

Validating Uploads BEFORE Uploading A Non Standard File Type
I'm making an upload form for people to upload files in ppf and sppf format, the mime type of which is "application/octet-stream", the files are obviously non standard. I need to be able to check that the file being uploaded is of the type sppf or ppf, only, nothing else, I am uploading using a POST form. I know that I would use javascript and php to get all the characters after the last . (dot) and check that they are equal to either sppf or ppf, but also, I know that someone could create form on a remote server and use my upload url as the action of the form, effectively bypassing any blocks of upload type.

I also know that I could use php after the file is uploaded to discard it if it is not either a sppf or ppf file. What I need to know is this, is there a way to do this before the file is uploaded, without javascript, could I have a middle step? Right now I go directly from the form to upload (in a switch statement, I have default and upload) could I add validate to that switch statement? I don't think that would work, becuase someone could still do it remotely.

Maybe I could, in the upload case of the switch statement, check that the userfile variable (being passed via POST method fromt he form) has the extension sppf or ppf, if it does, it uploads it, if not, it cancels. Would this work, and if not, could someone please give me an alternative to avoid checking after the file is uploaded.

Trimming A Large Log File?
I am looking for a simple way to keep my log files from growing too
large. Basically I would want something that truncates the off first 25
kb of a 100kb log file. I could do something with reading in the file
twice, first to determine number of lines. Then a second time to write
a copy of the reduced log file. Any simpler workarounds?

Large File Not Being Sent To Client
My company produces reports for our customers in PDF format. I have a
php script that verifies login status and access rights, and sends
the pdf to the client using readfile().

This has worked fine until recently. One of our customers' reports
is 10.6MB, and the customer never receives it and I can't get it
either. I checked the Apache access_log, and it shows varying
amounts of bytes being sent, but always close to 10MB.

I tried changing the php script to do fopen(), fread(), echo,
ob_flush() and flush(). After each flush, I write a message to a log
file. The messages in the log file stop at 10MB, as if the php script
is hung.

Using a network monitor, I see the connection being established, the
HTTP GET being sent, but no content coming back.

PHP version is 5.1.2
Apache is 2.2.3
OS is SuSE Linux Enterprise Server 10.0 - 64bit

Current test version looks like this:

ini_set("output_buffering", "0");
ini_set("implicit_flush", "1");
ini_set("memory_limit", "100M");
ini_set("max_execution_time", "600");
$lth = 0;
$in = fopen($path, "r");
while (!feof($in)) {
$data = fread($in, 8192);
$lth += strlen($data);
$errLog->WriteLog("Read $lth bytes" , "debug.txt");
echo $data;
$errLog->WriteLog("After echo" , "debug.txt");
ob_flush();
$errLog->WriteLog("After ob_flush" , "debug.txt");
flush();
$errLog->WriteLog("After flush" , "debug.txt");
}
$errLog->WriteLog("Got EOF", "debug.txt");
fclose($in);
$errLog->WriteLog("End of Script - read $lth bytes", "debug.txt");

The last five lines of the debug.txt log file say:

Read 10223616 bytes
After echo
After ob_flush
After flush
Read 10231808 bytes
After echo

PHP Handle Large File = DNS Error?
I have installed PHP4 with Apache 2 in my Redhat Server. However, I found that it will show DNS error when PHP handle file which over 500k. (e.g. upload file over 500k shows DNS error page, forward mail in webmail with over 500k attachment will also show DNS error page...)

Anything wrong with PHP4 or Apache 2..?

(in php.ini, upload_max_filesize = 2Mb)

Large File Is Downloaded With 0 Size
I am creating an excel file and then making it download by the browser. The
problem is that if the size of the file is less , than everything is ok ,but if
the size goes above say 200 KB than the file is downloaded with 0 bytes as size.
The code i am using is
header ("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header ("Last-Modified: " . gmdate("D,d M YH:i:s") . " GMT");
header ("Cache-Control: no-cache, must-revalidate");
header ("Pragma: no-cache");
header ("Content-type: application/x-msexcel");
header ("Content-Disposition: attachment; filename="" . basename($fl_name) .
""" );
header ("Content-Description: PHP/INTERBASE Generated Data" );
readfile($fl_name);
--------

Large File Download Problem In IE
I have a menu link that sends you to a download page, which gets the file name and location from a DB to grab a file outside the web directory (using sessions and SSL). This works great with small downloads.

However when downloading a large file (a few megs) you can no longer click other menu links or go to other pages - everything times out! (however the download will complete successfully) This is only in IE, and it works fine in Opera and Netscape. Does anyone know what setting or header IE needs to be happy? PHP Code: