How to access key in HTML select in $_POST
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I am having a select as shown below

    <select name = "search_user" id="searchselect">
       <option value="1">user1</option>
       <option value="2">user2</option>
       <option value="3">user3</option>
       <option value="4">user4</option>
    </select>

user3 is selected and the form is submitted using a post method. When I am accessing $_POST['search_user'] i am getting "user3", i want to get "3". How is it possible