Question

I am pretty new to WordPress. I want to know how to define image width and height size for the featured image? I want all my images should be 100 X 100 px. So how to do that? Any help and suggestions are welcome.

Answer 1

Use something like this in your function.php file

<?php add_image_size( $name, $width, $height, $crop ); ?>

Where Parameters will be like

$name
(string) (required) The new image size name.

$width
(int) (optional) The post thumbnail width in pixels.

$height
(int) (optional) The post thumbnail height in pixels.

$crop
(boolean) (optional) Crop the image or not. False - Soft proportional crop mode ; True - Hard crop mode.

For more information just go through the wordpress codex documentation.