javascript - How to get id of selected item in database populated combobox in PHP -


i have problem regarding obtaining id combo box populating name of customer database containing field id & name. want id of name selected user combo box. following code have applied populating combo box:

    <input type="text" class="input-field" id="registernumber" name="register_number"                 list="register_number" placeholder="select register no" /></label>  <!-- populating editable combobox -->     <datalist id="register_number" >     <?php                                        $result_set= mysqli_query( $connection, "select  id,  customer_name                service_register ");         while($result = mysqli_fetch_assoc($result_set)){             echo "<option value=\"{$result["customer_name "]}\"                            id=\"{$result["id"]}\"></option>";         }    ?>

you dont have set type of input text , should wrap input form tag. form tag have url of server side code handle form submission. submit button should provided user. clarity should visit example http://www.w3schools.com/tags/tryit.asp?filename=tryhtml5_datalist

<form action="server_code.php" method="get">     <input class="input-field" id="registernumber" name="register_number"                     list="register_number" placeholder="select register no" /></label>      <!-- populating editable combobox -->         <datalist id="register_number" >         <?php                                            $result_set= mysqli_query( $connection, "select  id,  customer_name                    service_register ");             while($result = mysqli_fetch_assoc($result_set)){                 echo "<option value=\"{$result["customer_name "]}\"                                id=\"{$result["id"]}\"></option>";             }        ?>      <input type="submit"> </form>

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