Name="foo" not working

I add this code in one page:

[fu-upload-form class=”your-class” title=” “]
[input type=”text” name=”post_title” id=”title” class=”required” description=”Título”]

[select name=”foo” class=”select” id=”ug_select” description=”Elige una Categoría” values=”Carteles,Viñetas,Instagram,Twitter,Vídeos”]

[input type=”file” name=”photo” id=”ug_photo” class=”required” description=”Tu Imagen:”]
[input type=”hidden” name=”action” value=””]
[input type=”submit” class=”btn” value=”Enviar”]
[/fu-upload-form]

In name=”foo” :
[select name=”foo” class=”select” id=”ug_select” description=”Elige una Categoría” values=”Carteles,Viñetas,Instagram,Twitter,Vídeos”]

Users select one option, but not saved in UGC.

More…(sorry…)
I reading this post:
http://ww.wp.xz.cn/support/topic/how-to-add-tags-1?replies=14

Where I have to add this code?
What functions.php?

/**************************************************************************/
// Custom action to do any additional logic after attachment is uploaded
function my_fu_after_upload( $media_ids, $success ) {
// Iterate array with attachment ids
foreach( (array) $media_ids as $media_id ) {

// Term is just an example, all $_POST variables should be available to you
$term = sanitize_text_field( $_POST[‘post_tags’] );

wp_set_object_terms( $media_id, $term, ‘imagetype’, true );
}
}
add_action( ‘fu_after_upload’, ‘my_fu_after_upload’, 10, 2 );

/***************************************************************************/

Thanks for all!!!!

http://ww.wp.xz.cn/plugins/frontend-uploader/