wordpress - Merging PHP codes -

i want combine 1 part of php code part, , can't seem figure out how it.

this code:

        <?php         if (is_single()) {             while (have_posts()) : the_post();                 // thumbnail                 wikiwp_get_thumbnail($post);         ?> <div>this should stay here in post</div> <div>and should visible in case</div>          <?php             endwhile;         } else {          ?>  <div>this should stay here in page</div>          <?php         }          ?> 

i want add first bit of php endwhile. want put bit:

                <?php                 if (is_page()) {                     while (have_posts()) : the_post();                         // thumbnail                         wikiwp_get_thumbnail($post);                 ?> 

into part: (without breaking code)

           <?php                 endwhile;             } else {              ?> 

the result is: if single post show:

[thumbnail]  should stay here  , should visible in case 

if page show:

[thumbnail]  should stay here on page 

how this?

<?php  if (is_single() || is_page()) {     while (have_posts()):         the_post();          # page + post         wikiwp_get_thumbnail($post);          # post         if (is_single()) { ?>  <div>this should stay here in post</div> <div>and should visible in case</div>  <?php         } else if (is_page()) { ?>  <div>this should stay here in page</div>  <?php         }     endwhile; } else { ?>  <div>this neither page or post!</div> <?php } ?>