<?php
require_once './connect.php';

if (isset($_POST['savewater']))
    $wid = $_POST['wid'];
    $newnum = $_POST['newnum'];

    $val = count($wid);

   for ($i = 0 ; $i < $val ; $i++) {
    //    $sql = "INSERT into rooms (new_number) VALUES ($newnu) WHERE id = '$wid'";

       echo "INSERT into rooms (new_numbers) VALUES ($newnum[$i]) WHERE id = '$wid[$i]' " .'<br>';
   }


?>