uploading a file with php

[arcticmouse]

this is probably a total newbie question, but i can seem to figure it out.
when i run this code it gives me this error:
Undefined index: work in FILENAME on line 3... which is the file-to-be-uploaded name.

i copied this from php.net, so i thought it should work. then i copied the simpler code from w3 schools, and that gave me the same error. but, here is my html and php:

[HTML]<form action="process .php" method="POST">
Picture: <br>
<input type="hidden" name="MAX_FILE_ SIZE" value="25000" />
<input name="work" type="file" >
<br><br>
<input type="submit" value="Submit">[/HTML]

[PHP]<?php
$target_path = "/uploads/";
$target_path = $target_path. basename( $_FILES['work']['name']);

if(move_uploade d_file($_FILES['work']['tmp_name'], $target_path)) {
echo "The file ". basename( $_FILES['work']['name']).
" has been uploaded";
} else{
echo "There was an error uploading the file, please try again!";
}
?>[/PHP]

thanks in advance to anyone who stoops to answer my easy question!

oh, also, it might help to know that i am using brinkster, and their php.ini file does not allow me to do many things (like send email). which sucks for me, since i obviously am not the most knowledgable in php. also, this is a page for someone else, so moving the website from brinkster to another server is not an option! :)

[Markus]

You haven't given the form's enctype.

<form ... enctype="multipart/form-data">
...
</form>

[arcticmouse]

You haven't given the form's enctype.

<form ... enctype="multipart/form-data">
...
</form>

thank you so much markus! that was it! you sir, are most excellent! have a wonderful week!

[Markus]

thank you so much markus! that was it! you sir, are most excellent! have a wonderful week!

Aha! Well thank you for such a warm thank you!

See you around.

Markus.

[zabsmarty]

change this
<form action="process .php" method="POST">

into
<form enctype="multip art/form-data" action="process .php" method="POST">

[Markus]

change this
<form action="process .php" method="POST">

into
<form enctype="multip art/form-data" action="process .php" method="POST">

Ok, are you just taking my answers and putting them into different words?