These new image functions enable you to remove custom image sizes by name conditionally using a custom function and check if your theme has the custom image size by name included.
The 2 New image functions are:
- remove_image_size(‘$name’);
- has_image_size(‘$name’);
Remove Image Size
add_action('init', 'wpsites_remove_then_add_image_sizes');
function wpsites_remove_then_add_image_sizes() {
remove_image_size('$name');
add_image_size( '$name', 300, 150, array( 'left', 'top' ) );
}Has Image Size
add_action('after_setup_theme', 'wpsites_remove_image_size');
function wpsites_remove_image_size() {
if(has_image_size('$name')) {
remove_image_size('$name');
}
}Usage
Replace $name with the name of your existing image size or new size
The custom functions would generally go in your child themes functions.php file however you could use them in other files.