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Posted by Jerry Stuckle on 09/04/07 11:38
The Natural Philosopher wrote:
> Jerry Stuckle wrote:
>> The Natural Philosopher wrote:
>>> The Natural Philosopher wrote:
>>>> This is so weird.
>>>>
>>>> What I am trying to do is to upload files and stuff them in a mysql
>>>> database.
>>>>
>>>> Everything works except the file content is zero.
>>>>
>>>> using the load_file command from mysql command line as 'root' works
>>>> and i can download the inserted file ok.
>>>>
>>>> using the load_file command from mysql as 'web-user' (my default web
>>>> user?) didn't work until I gave that user every permission I could
>>>> find, and *restarted mysqld*. (why? *shrug*)
>>>>
>>>> using the load_file command from php/Mysql to load the temporary
>>>> files fails miserably all the time. Not one success. Everything else
>>>> is fine..I get the name and the size coming through,and I've
>>>> 'echo'ed the command string that goes to mysql_query() and tried it
>>>> in the command line stuff, and that works provided I give it a file
>>>> that actually exists.
>>>>
>>>>
>>>> If the file does NOT exist then I get no error, just no data..
>>>>
>>>> So that is a possibility..
>>>>
>>>> Ah. I copied the temporary file to somewhere else (/tmp/foo), and
>>>> then handed it to MySQL..THAT WORKED..
>>>>
>>>> So it's something about how the temporary file is - or isn't - being
>>>> written to disk maybe.
>>>>
>>>> Is there a way to force a close on the file..maybe that's the
>>>> problem Mysql is opening a file that is not flushed to disk maybe?
>>>>
>>> Mmm I tried move_uploaded_file() and THAT didn't work either.
>>>
>>> Something is badly broken/misconfigured in PHP I think.
>>> I gew the feeling its maintaining its own picture of file objects,
>>> and doesn't actually flush to the disk unless you do a copy or close
>>> php..
>>
>> No, PHP doesn't maintain it's own copy. However, it's possible the OS
>> hasn't flushed a file to disk. Unlikely, though.
>>
>> This sounds very much like a permissions problem - does MySQL have
>> read access to the directory the file is in, also?
>>
>> Of course, with no code, everything's a guess...
>>
> // Yawn bugger, Files. File data should be stored in the $_FILES[]
> array, so let's start with the the new ones..
> for ($i=0;$i<10;$i++)
> {
> $index="new_file".$i;
> $filename= $_FILES[$index]["name"]; //orig filename
> $filesize= $_FILES[$index]["size"]; // the size in bytes of
> the uploaded file
> $tmpname=$_FILES[$index]["tmp_name"]; // the name of the
> temporary copy of the file stored on the server
> $index="new_description".$i; // where new file decscriptors are
> stored
> $filedescription=$_POST[$index];
> copy($tmpname,"/tmp/foo"); //otherwise you get a null content
// You should be using
move_uploaded_file($tmpname,'/tmp/foo/'.basename($filename));
// If it doesn't work, look for the error message!
> if ($filename=="" || $filesize==0) // skip emptiness.
// You should do this before trying to move the file
> continue;
> // one supposes one has a file at this point..massage the name
> into just the filename without the slashes
> $filename=basename($filename);
> $query=sprintf("insert into project_files set
> project_id='%s',current='yes', date='%s' ,user='%d', size='%d',
> description='%s', name='%s', content=LOAD_FILE('%s') ",
> $project_id,
> date('Y-m-d'),
> $employee_id,
> $filesize,
> $filedescription,
> $filename,
> "/tmp/foo");
> mysql_query($query);
> }
> }
// Does the webserver user have FILE privileges? And how big is the
file? What's max_allowed_packet set to in your mysql configuration?
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================
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