<?php

  $name = $_GET['name'];
  $q    = $_GET['q'];
  IF(IS_NUMERIC($q)):
    IF($q=="0"):
      $greeting = "Good morning ";
    ELSIF($q==1):
      $greeting = "Good afternoon ";
    ELSE:
      $greeting = "Go away ";
    ENDIF;
    ECHO $greeting.$name;
  ELSE:
    ECHO "q MUST be a number. Try again";
    EXIT;
  ENDIF;

?>