Wordpress custom taxonomy hierarchy insert - php

Question

I am having some trouble getting this loop to work properly.
I want to insert Country, State, City, Community from google maps as heiarchy in a custom taxonomy of wordpress. All the variables get set but when it runs through the for loop it only populates and inserts the country or 1st array $loop[0].
I am using $pastID[$d] to save the last term_id to use it as the parent in the next term. If this is just bad let me know.
I have to use Globals as I am connecting with an existing plugin also.
$custom_tax_name = "location";
$loop = array();
$loop[0] = $country = $GLOBALS['custom_array']['country'];
$loop[1] = $state = $GLOBALS['custom_array']['state'];
$loop[2] = $city = $GLOBALS['custom_array']['city'];
$loop[3] = $community = $GLOBALS['custom_array']['community'];
$pastID = array();
$terms = array();
for($i = 0; $i<=3; $i++) {
$d = $i - 1;
if (!empty($loop[$i])){
$term_exist = term_exists( $loop[$i], $custom_tax_name );
if (!$term_exist){
if ($i == 0){
$pastID[$d] = wp_insert_term("$loop[$i]", $custom_tax_name);
} else {
if (empty($pastID[$d]['term_id'])){
$term = get_term_by('name', $loop[$i], $custom_tax_name);
$termParent = $term ? $term->parent : false;
if ($termParent == false){
continue;
}
$pastID[$d] = wp_insert_term("$loop[$i]", $custom_tax_name, array("parent" => $termParent));
} else {
$termParent = $pastID[$d]['term_id'];
$pastID[$d] = wp_insert_term("$loop[$i]", $custom_tax_name, array("parent" => $termParent));
}
}
} else {
$pastID[$d] = $term_exist;
}
$terms[] = $loop[$i];
delete_option('{$custom_tax_name}_children');
} // nothing exist
}

Answer 1

Ok So I was able to figure this out after taking a look and feel a little slow here.
the $pastID needed to have $i variable when setting it and $d when referencing it on the next loop. The code below will create a hierarchy taxonomy up to 4+ deep using my variables for country, state, city, and community. It will check if the variable exist and if it does not it will make sure it has a parent to associate it with or not insert it. Anyways thanks.
for($i = 0; $i<=3; $i++) {
$d = $i - 1;
if (!empty($loop[$i])){
$term_exist = term_exists( $loop[$i], $custom_tax_name );
if (!$term_exist){
if ($i == 0){
$pastID[$i] = wp_insert_term($loop[$i], $custom_tax_name);
} else {
if (empty($pastID[$d]['term_id'])){
$term = get_term_by('name', $loop[$i], $custom_tax_name);
$termParent = $term ? $term->parent : false;
if ($termParent == false){
continue;
}
$pastID[$i] = wp_insert_term($loop[$i], $custom_tax_name, array("parent" => $termParent));
} else {
$termParent = $pastID[$d]['term_id'];
$pastID[$i] = wp_insert_term("$loop[$i]", $custom_tax_name, array("parent" => $termParent));
}
}
} else {
$pastID[$d] = $term_exist;
}
$terms[] = $loop[$i];
delete_option('{$custom_tax_name}_children');
} // nothing exist
}