问所需文件出现异常致命错误

EN

<?php
require_once('includes/config.inc.php');
$page_title = 'Register';


if ($_SERVER['REQUEST_METHOD'] == 'POST') {


    require_once(MYSQL);
    $trimmed = array_map('trim', $_POST);

    $fn = $ln = $usr = $pw = $bd = $gs = $bs = FALSE;
//DATA VALIDATION  

//END DATA VALIDATION
if($fn && $ln && $usr && $e && $pw && $bd && $gs && $bs) {
  $q = "SELECT user_id FROM Users WHERE email='$e'";
  $r = mysqli_query ($dbc, $q) or trigger_error("Query: $q\n<br/>MySQL Error: " . mysqli_error($dbc));
  if (mysqli_num_rows($r) == 0) {
    $a = md5(uniqid(rand(), true));
    $q = "INSERT INTO Users (first_name, last_name, user_name, email, password1, birthdate, gamespy_id, base, active, registration_date)      VALUES ('$fn', '$ln', '$usr', '$e', SHA1('$pw'), '$bd', '$gs', '$bs', '$a', NOW() )";
    $r = mysqli_query($dbc, $q) or trigger_error("Query: $q\n <br/>MySQL Error:" . mysqli_error($dbc));
    if  (mysqli_affected_rows($dbc) == 1){
      $body = "Thank you for registering with Gateway Aviation. To activate your account, please click on this link:\n\n";
      $body .= BASE_URL . 'activate.php?x=' . urlencode($e) . "&y=$a";
      mail($trimmed['email'],'Registration Confirmation', $body, 'From: noreply@virtual-aviation.org');
      echo '<h3> Thank you for registering! A&nbsp;confirmation email has been sent to your address. Please click on the link in that email in order to activeate your accout.</h3>';
exit();
    } else {
      echo '<p class="error>You could not be registered due to a system error. We apologize for any inconvenience.</p>';
    }
  } else {
    echo '<p class="error"> That email has already been registered. If you have forgotten your password, use the link to reset it.</p>';
  }
  } else {
    echo '<p class="error">Please try again</p>';
  }


}
?>


        <td><input type='text' name='gamespyid' value='<?php if(isset($trimmed['gamespyid'])) echo $trimmed['gamespyid'];?>'/></td>
      </tr>
       <td>Base:</td>
       <td><select name="base" size="1">
          <option>
            Select One
          </option>
<?php
require_once(MYSQL);
         $q = "SELECT  airport_id, CONCAT_WS(' ', airport_code,' - ' airport_name) FROM airports ORDER BY airport_code ASC";
         $r = mysqli_query ($dbc, $q);

         if (mysqli_num_rows($r) > 0) {
         while ($row = mysqli_fetch_array ($r, MYSQLI_NUM)) {
         echo "<option value=\"$row[0]\"";
         if (isset($_POST['existing']) && ($_POST['existing'] == $row[0]) ) echo 'selected="selected"'; echo ">$row[1]</option>\n";
         }
   } else {
   echo '<option>Please a new airport first.</option>';
    }
   mysqli_free_result($result); 

         ?>
        </select></td>
    </table>
   <input type='submit' name='submit' value='Register'/>
  </form>
</body>
</html>