I'm working on a custom theme that I've inherited to maintain. At the top of the homepage there is a header area with some images generated by get_the_post_thumbnail. The call to get_the_post_thumbnail outputs img objects that are set to a specific width/height by their html attributes. Here's the code and output:

Inside a loop

<?php echo get_the_post_thumbnail( $id, array( 300, 300 ) ); ?>

Html output

<img width="215" height="93" src="[img filepath]" class="attachment-300x300 wp-post-image" alt="[img name]" title="[img name]">

I need to reset the attribute height and width dimensions to something other than 215 x 93. I can't find anywhere this is being set (checked in wp-admin as well as functions.php as well as anywhere else where I thought it might be). I am also not finding any places where set_post_thumbnail_size is being called with these values. Can anyone tell me where to reset these values?


  • Is the image larger than 215x93? WordPress will not embiggen a smaller image, to prevent the image from looking like crap. – Otto Jul 26 '11 at 0:33

You can look at adding an image size to your themes functions.php file.


You then just need to do <?php the_post_thumbnail('image-size-name'); ?> and it will pull out the image based on the sizes you set.


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