t/htdocs/php/nestif.php

<?php $a=1; $b=2;
  if($a==0):
        echo "bad";
  elseif($a==3):
        echo "bad";
  else:
        if($b==1):
                echo "bad";
        elseif($b==2):
                echo "good";
        else:
                echo "bad";
        endif;
  endif?>