Select2文本框设置初始值

Question

我有一个Select2输入，这是一个文本框，我就是这样做的

<input type="text" class="selectbox" name="selectbox['.$row[0].']" />

我应该像mys value="'.$row[1].'"一样动态地设置初始值，但它不起作用。

这是我的Jquery设置select2：

 $(".selectbox").select2({
         placeholder: "Search for a Golf Course",
         minimumInputLength: 1,
          ajax: {
                url: "functions/searchGolfCourses.php",
                quietMillis:100,
                dataType: 'json',
                params: {
                method: 'post'
                },
                data: function (term, page) {
                // Data to be sent to the server. Usually it is just the "term"
                // parameter (and page if using pagination).
                // However, since this API simply echoes back what we send,
                return { s: term /* 's' is passed to php as $_POST['s'], this will contains the user input*/
                }
          },
    results: function(data, page) {
        //data param === received response from the server. As dataType
        //is json, jQuery automatically parses the response into an object.
        return { results: data };
    }
  }
});

知道如何设置Select2输入框的初始值吗？提前谢谢