How to set the width and height rule for featured image

Question

I want to know how to make rules to re-size the images for featured image? I am uploading an image in featured image section but it is not cropping the images in exact width and height for all the images. I need (width:100 X height:140). So how to do that? Any help and suggestions are welcome.

Answer 1

You can set default site for featured images using set_post_thumbnail_size() or request different registered size by providing it as argument in the_post_thumbnail() call.

Answer 2

in wordpress, you can set the width and height of the thumbnail image by:

the_post_thumbnail(array(270,270));