Untitled

<!DOCTYPE html>
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<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
    </head>
    <body>
        <?php

        if(isset($_POST['check'])){
            $dbhost = '127.0.0.1';
            $dbuser = 'root';
            $dbpass= '';
            $db = 'dbvehiculos';

          $conn =  mysqli_connect($dbhost, $dbuser, $dbpass);

          if(! $conn){
              die ("Fallo en conexión: " . mysqli_error());

          }

         $db_select = mysqli_select_db($conn, $db);

          if(! $db_select){
              die ("Fallo en conexión a base de datos: " .
                      mysqli_error());

          }

          $ID = $_POST['v_ID'];

          $sql = "SELECT * FROM `test` WHERE id=$ID";
          //$sql = "INSER INTO test "
                //. "(IDVeh, Marca, Modelo, Fecha)"
               // . "(monthlyAmount, intRate)"
               // . "VALUES ('$ID', '$MAR')";

        $qry = mysqli_query($conn, $sql) or
                die ('Consulta fallida');

                if(! $qry){
                    die(mysqli_error());

                }
                $result = mysqli_query($conn, $sql);
                while ($row = mysqli_fetch_object($result)) {
                    echo 'Amount Owed: ' .$row->monthlyAmount;
                    echo '<br>';
                    echo 'Interest Rate: ' .$row->intRate;
                    echo '<br>';
                    echo 'Daily interest: ' .$row->intRate/30;
                    echo '<br>';
                    echo 'Days past due: ' .$row->pastDue;
                }

                mysqli_close($conn);

                }
         else{

                ?>
<form method = "post" action = "<?php $_PHP_SELF ?>">
                  <table width = "400" border = "0" cellspacing = "1"
                     cellpadding = "2">
                     <tr>
                        <td width = "100">ID NUMBER</td>
                        <td><input name = "v_ID" type = "text"
                           id = "veh_ID"></td>
                        </tr>
                        <tr>
                        <td width = "100"> </td>
                        <td>
                           <input name = "check" type = "submit" id = "check"
                              value = "CHECK">
                        </td>
                     </tr>
                  </table>
               </form>

<?php
         }
?>


    </body>
</html>