Reply To: How to Narrow Categories Displayed in ACF?

• joshangehr

• March 1, 2019 at 1:49 pm

No problem! In that case, try this.

function acf_load_field_choices( $field ) {

  	// Create an empty array
	$field['choices'] = array();

  	// Get parent categories and order by name
	$categories = get_categories( 
		array(
			'orderby' => 'name',
			'hide_empty' => 0,
		) 
	);

  	// Create a counter variable for the array
	$i = 0;

	foreach( $categories as $category ) {

		// Get the top level categories
		if ( $category->parent == 0 ) {

			$field['choices'][$i] = $category->name;

			$i++;

			// Get subcategories within the parent category only
			foreach ( $categories as $subcategory ) {

				if ($subcategory->parent == $category->term_id) {

					$field['choices'][$i] = $subcategory->name;
					$i++;
				}
			}

			$i++;

		}
	}

  	// Return the result
	return $field;

}

add_filter('acf/load_field/name=test', 'acf_load_field_choices');