I sucessfully print the whole taxonomy tree through this code
`$voc = taxonomy_vocabulary_machine_name_load('product_sub_categories');
    $tree = taxonomy_get_tree($voc->vid,0,NULL,TRUE);
    foreach ($tree as $key => $term){
    print $term->name."</br>";
    }`
, now I want to separatly print parent and chile in order to custon theme them, because I have already a markup in which parent has separate  `<p class="parent_class">`Parent terms</p> and children has separate
`<ul class="child_class">Child terms</ul>`. How should I do this, can anyone there to help me?