WordPress taxonomy / term if category is parent of child

A quick little WordPress snippet to determine if a category or taxonomy or term has a parent, has a parent and child, or has no parent, but a child.

Specifically we used this to show and hide sub-categories via a drop down menu using Woocommerce, but could be handy in many instances.  Just insert this code where you are want to add conditional logic based on the category structure.

$term = get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxonomy' ) ); // get current term
$parent = get_term($term->parent, get_query_var('taxonomy') ); // get parent term
$children = get_term_children($term->term_id, get_query_var('taxonomy')); // get children
if(($parent->term_id!="" && sizeof($children)>0)) {
// has parent and child
}elseif(($parent->term_id!="") && (sizeof($children)==0)) {
// has parent, no child
}elseif(($parent->term_id=="") && (sizeof($children)>0)) {
// no parent, has child
}