รบกวนหน่อยค่ะ อยากได้ค่า id ของ Script เอาออกมาใส่ช่องinput อีกช่อง ต้องทำยังไงค่ะ

<tr>
       <td height="33" style="font-size: 14px">&nbsp;Description :<span style="text-align: left">&nbsp;</span></td>
       <td><select id='selUser' style='width: 300px;'  >
		     <option value='0'>- Search -</option>
		   </select>
	   </td>
	   <td></td>
	   <td ></td>
     </tr>
 <tr>
       <td height="33" style="font-size: 14px">&nbsp;Material  :<span style="text-align: left">&nbsp;</span></td>
       <td><input name="I_MATNR" type="text" id="I_MATNR" size="25"></td>
     </tr>

	           <script>
			$(document).ready(function(){
				$("#selUser").select2({
					ajax: {
						url: 'getDatasap.php',
						dataType: 'json',
						type: "POST",
						delay: 250,
						data: function (params) {
							return {
							term: params.term 
							};
						},						
					processResults: function (data) {
						return {
  				           results: data
 
							//results: $.map(data, function(obj) {
							//return { id: obj.id, text: obj.Section };
							//})
							};
						}
					}
				});
			}); 
 
        </script> 

include("Connect.php");
header('Content-Type: text/html; charset=utf-8');
$conn = new DB;
 
 //print_r($_POST['term']);
 //exit;
if(!isset($_POST['term'])){ 
//echo '1';
  $fetchData = $conn->Selectrecordjoin("select TOP (5) PERCENT  * FROM Mat_keyword order by id asc ");
}else{ 
//echo '2';
//print_r($_POST['term']);
  $search = $conn->converttoutf8($_POST['term']);
  $fetchData = $conn->Selectrecordjoin("select * FROM Mat_keyword where key_word Like '%$search%' ");
  //$row = $conn->parseArray($fetchData);
  //print_r($row);
  //exit;
}
$data = array();

while ($row = $conn->parseArray($fetchData)) {
	//print_r($row);
	$Section = $conn->converttotis620($row['Description']);
	$Material_Select = $conn->converttotis620($row['Material']);
	//print_r($row);
  $data[] = array("id"=>$row['id'],"Material"=>$row['Material'], "text"=>$Section);

}
echo json_encode($data);