This is my form with a file input field named "photo":

<form action = "spremi-film.php" method = "POST" enctype = "multipart/form-data">
        <div class="grid_2">Naslov:</div>
        <div class="grid_10"><input type="text" name="naslov" value="" /></div>

        <div class="grid_2">Žanr: </div>
        <div class="grid_10"><?php izborZanra();   ?></div>

        <div class="grid_2">Godina: </div>
        <div class="grid_10"><?php izborGodine();   ?></div>

        <div class="grid_2">Trajanje:</div>
        <div class="grid_10"><input type="text" name="trajanje" value="" /></div>

        <div class="grid_2">Izbor slike:</div>
        <!--<input type="hidden" name="MAX_FILE_SIZE" value="30000" />-->
        <div class="grid_10"><input type="file" name="photo"  /></div>


        <div class="grid_12"><input type="submit" value="SPREMI" /></div>
        </form>

After that i put this code:

                $uploaddir = '/slike';
        $uploadfile = $uploaddir . basename($_FILES['photo']['name']);

        //echo '<pre>';

        if(move_uploaded_file($_FILES['photo']['tmp_name'], $uploadfile))
        {
            echo 'Slika je uspješno spremljena!';
        }
        else
        {
            echo 'Slika nije spremljena!';
        }

        //print_r($_FILES);

        //echo '</pre>';

When i run this i have an undefined index: photo notice in my browser. Help, please.