Input custom lightbox

Scheduler Javascript
#1

Hello,

I have my fully custom lightbox working but I need add multiple input array example:

<input type="text" name="user_id[]"/>
<input type="text" name="user_id[]"/>
<input type="text" name="user_id[]"/>

How I can process it to my database? like:

foreach $_POST[user_id] as $id
     insert into users_link (id_user,id_event) VALUES ($id,$id_event);

thx!!