Title: Changing the thumb
Last modified: August 19, 2016

---

# Changing the thumb

 *  [m4z1nh0](https://wordpress.org/support/users/m4z1nh0/)
 * (@m4z1nh0)
 * [15 years, 5 months ago](https://wordpress.org/support/topic/changing-the-thumb/)
 * I have a blog and it uses the Simple Post plugin Thumbnails Thumbnails to create,
   the more I want to put the thumbs with Custom Field to add external links on 
   the blog, most do not know how to do this without losing the thumbs of old posts.
   I’ll add one thought to add code that if they can tell me how to do it without
   losing anything I appreciate it.
 * Current mood:
 *     ```
       <?php function get_thumbnail($postID) {
           if( function_exists('p75GetThumbnail') ) {
               $thumbnail = p75GetThumbnail($postID);
               return $thumbnail ? $thumbnail : get_bloginfo('template_url') . '/images/default-thumb.png';
           }
           return "";
       }
       ```
   
 * Single-post.php
 * `<img src="<?php echo get_thumbnail($post->ID); ?>" alt="<?php the_title() ?>"
   width="192" height="120" />`
 * I want to add code:
 *     ```
       <?php // This will show only the image. Alter the width and height (in both places) to your needs. ?>
       <?php if ( get_post_meta($post->ID, 'thumb', true) ) { ?>
       	<div class="postthumb">
       		<img src="<?php bloginfo('template_directory'); ?>/timthumb.php?src=<?php echo get_post_meta($post->ID, "thumb", $single = true); ?>&h=120&w=192&zc=1" alt="<?php the_title(); ?>"  />
       	</div>
       <?php } ?>
       ```
   

The topic ‘Changing the thumb’ is closed to new replies.

 * 0 replies
 * 1 participant
 * Last reply from: [m4z1nh0](https://wordpress.org/support/users/m4z1nh0/)
 * Last activity: [15 years, 5 months ago](https://wordpress.org/support/topic/changing-the-thumb/)
 * Status: not resolved

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