How to pass this dynamically generated select value

How to pass this dynamically generated select value?

HTML Code

  
           Transferred to        {foreach item=pm_list  from= $pm _list}            {$pm _list.user_name}        {/foreach}    

How can I make {$pm _list.user_id} also a parameter of CHANGE_PM ()? It's the same as {$list. ID} and becomes a parameter of CHANGE_PM ()

------Solution--------------------
{$PM _list.user_id} This is a number of IDs? Are you going to put all the IDs in the CHANGE_PM () parameter?

Do you want the value of option currently selected??
------Solution--------------------
Transferred to {foreach item=pm_list from= $pm _list}{$PM _list.user_name} {/foreach}
------Solution--------------------
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HTML Code
Transferred to {foreach item=pm_list from= $pm _list}