Uploads matters....

[Emanuele D'Arrigo]

Hi everybody!

I could use a little explaination here!

I spent quite a few hrs yesterday evening coding
the script behind a form to upload a picture, and
I think it does what it is supposed to do, but I'm
not too happy with my understanding of the features
available in php to deal with this issue.

Question #1
If the field in the form is not empty but the file
does not exist on the client's hard drive, the variable
$_FILES[filename][error] and $_FILES[filename][size]
are both set to zero. But how do I discern between a
file that is not existant and a transfer that for some
strange reason has not yet written anything on the
server side?

Question #2
Once the user click on the submit button, the transfer
seems to start right away, and the next page is shown
only when the transfer actually ends.
Is there any way to avoid this? I'd like instead to
show the first part of the page, wait for the transfer
to finish, and only then continue with the generation
of the rest of the page. Is this possible?

Thanks for your help.

Manu

"Emanuele D'Arrigo" <ma****@mclink.it> wrote in message news:42**************************@posting.google.c om...

Hi everybody!

I could use a little explaination here!

The PHP script which receives the uploaded file should implement whatever logic is necessary for determining what should be done with the uploaded file. You can, for example, use the $_FILES['userfile']['size'] variable to throw away any files that are either too small or too big. You could use the $_FILES['userfile']['type'] variable to throw away any files that didn't match a certain type criteria. As of PHP 4.2.0, you could use $_FILES['userfile']['error'] and plan your logic according to the error codes. Whatever the logic, you should either delete the file from the temporary directory or move it elsewhere.

If no file is selected for upload in your form, PHP will return $_FILES['userfile']['size'] as 0, and $_FILES['userfile']['tmp_name'] as none.

The file will be deleted from the temporary directory at the end of the request if it has not been moved away or renamed.

____________________________________
Wil Moore III, MCP | Integrations Specialist | Assistant Webmaster

[Emanuele D'Arrigo]

Thanks Wil for your answer.

Strangely, the $_FILES['filename']['tmp_name'] didn't seem to return "none",
only an empty string instead. But I can handle that.

Any hint about my second question?

Manu