I'm sorry for asking such a silly question, but I know nothing about php (just plain HTML), so I'm having trouble to use a file submission form on my website.
I'm using hosting services from hyperphp.com (a free web hosting that allows php), and I found this code:

<form action="upload.php" method="post" enctype="multipart/form-data" name="form1">
<p align="center">Archivo
<input name="archivo" type="file" id="archivo">
</p>
<p align="center"><input name="boton" type="submit" id="boton" value="Enviar"></p>
</form>

Then the code for the php file ("upload.php"), which would be:

<?
if($boton) {
if (is_uploaded_file($HTTP_POST_FILES['archivo']['tmp_name'])) {
copy($HTTP_POST_FILES['archivo']['tmp_name'], $HTTP_POST_FILES['archivo']['name']);
$subio = true;
}
if($subio) {
echo "El archivo subio con exito";
} else {
echo "El archivo no cumple con las reglas establecidas";
}
die();
}
?>

I uploaded the "upload.php" file to my web server and tried sending a file through the form, but it doesn't work. I know there's some step missing, but since I'm completely dumb about php, I don't know what it is.
Could any good heart help me please?

What happens when you try to upload something ?
Do you get an error message, or something ?

The way I see this code, PHP will try to write the file at the same place that this script.
But this could fail if PHP had only reading permissions on the current folder.
Or maybe the file upload is disabled, as some functions can be disabled in safe mode...

Another thing is that often free hosting restrict the maximum size of the files. So, if your file is bigger that this limit (and if there is one) maybe that the file is silently discarded from the directory.

No, I don't get any error messages, just a blank page. I tried with a different script and I got an error message saying the file could't be uploaded (because the script was set to show that if there was a problem). I tried with a 10kb file, so it can't be the size.
Maybe I have to set up something on my hosting control panel? I've seen a lot of databases things I don't understand. Could it be that?
Thanks

Originally Posted by patr1c1a

No, I don't get any error messages, just a blank page. I tried with a different script and I got an error message saying the file could't be uploaded (because the script was set to show that if there was a problem). I tried with a 10kb file, so it can't be the size.
Maybe I have to set up something on my hosting control panel? I've seen a lot of databases things I don't understand. Could it be that?
Thanks

I don't think it would be anything database related, since you aren't working with any. All you really are doing is uploading files, not selecting data or inserting data to a database.

And the codes I pasted in my first post are correct?
Do you know any other code that might actually work? I only need people to be able to upload image files. I don't know if there's any size restriction, so it would be nice that the code includes a function to reject uploads of files that are bigger than [x].
Thankies!

$path = "uploads/"; 
if(move_uploaded_file($_FILES['htmlformname']['tmp_name'], $path/{$_FILES['htmlformname']['tmp_name']})) {
    print "The file has been uploaded!";
} else{
    print "The file could not be uploaded.";
}

Tell me if that works...It should, I just took out your copy() function.

I get an HTTP 500 error page
Thanks for the code anyway

did you change the $_FILES['htmlformname'] to your upload field name?

Error reporting may be turned off by the hosting default. Try adding the following line to the top of your script:

error_reporting(1);