PHP Mysql et Javascript : Affichage dans plusieurs input selon (autocomplétion)

$('#prix_ht').val(ui.item.value); // save selected id to input
$('#id_items').val(ui.item.value);

$('#prix_ht').val(ui.item.value); // save selected id to input
$('#id_items').val(ui.item.id_items);

   $query = "SELECT id_items, prix_ht as value,  item as label  FROM items WHERE item like'%".$search."%'";   

$('#prix_ht').val(ui.item.value); // save selected id to input
$('#id_items').val(ui.item.id_items); // save selected id to input

<?php

//session_start();

//On commence par activer l'affichage des erreurs PHP
error_reporting(E_ALL);
ini_set('display_errors', TRUE);
ini_set('display_startup_errors', TRUE);

/* DATABASE CONFIGURATION */
define('DB_SERVER', 'localhost');
define('DB_USERNAME', 'root');
define('DB_PASSWORD', '');
define('DB_DATABASE', 'test');


function getDB() 
{
 $dbhost=DB_SERVER;
 $dbuser=DB_USERNAME;
 $dbpass=DB_PASSWORD;
 $dbname=DB_DATABASE;
  try {
 $bdd = new PDO("mysql:host=$dbhost;dbname=$dbname", $dbuser, $dbpass); 
    $bdd->exec("set names utf8");
    $bdd->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    $bdd->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
    // $bdd->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_OBJ);
    return $bdd;
  } catch (PDOException $e) {
    echo 'Connection failed: ' . $e->getMessage();
    exit;
  }
}
?>

 <?php 
require "../inc/connexion.php";

//connexion à la bdd
$bdd = getDB();


if(isset($_POST['search'])){
   $search = $_POST['search'];
   $query = "SELECT id_items , prix_ht, as value,  item as label  FROM items WHERE item like'%".$search."%'";   

   try{
    $requete = $bdd -> prepare($query) ;   
    $requete->execute() ;
  //var_dump($requete);
    $response= $requete->fetchAll(); // on stocke le resultat dans un array
 

  }catch(Exception $e){
    // en cas d'erreur :
     $response = " Erreur ! ".$e->getMessage();
  
  }
  echo json_encode($response);
 // var_dump($response);
  exit;
}

   
  <script  >
        $( function() {
          
          $( "#autocompletei" ).autocomplete({
            source: function( request, response ) {
              
              $.ajax({
                url: "<?php echo URLSITE;?>/fetch/Items.php",
                type: 'post',
                dataType: "json",
                data: {
                  search: request.term 
                },
                success: function( data ) {
                  response( data );
                }
              });
            },
            select: function (event, ui) {
                $('#autocompletei').val(ui.item.label); // display the selected text
                $('#id_items').val(ui.item.id_items); // save selected id to input
                $('#prix_ht').val(ui.item.value); // save selected id to input
               
                return false;
              }
            });
          
        });
        function split( val ) {
          return val.split( /,\s*/ );
        }
        function extractLast( term ) {
          return split( term ).pop();
        }
      </script> 

 "SELECT id_items , prix_ht, as value,  item as label  FROM items WHERE item like'%".$search."%'";