<?php
/**
 * Check if a category is subcategory
 *
 * @package Biofriction
 * @since Biofriction 1.0.0
 */

if ( ! function_exists ( 'is_subcategory' ) ) :
  function is_subcategory (){
    $cat = get_query_var('cat');
    $category = get_category($cat);
    $category->parent;
    return ( $category->parent == ‘0’ ) ? false : true;
  }
endif;