How to Display Custom Taxonomy in Order of Hierarchy - wordpress

Question

Right now I have a front end form that lists 4 separate taxonomies in checkbox inputs that a user selects. I can list all of the terms one after the other but I can't figure out out to list them with proper hierarchy like so:
-parent
-child
-child
-child
-parent
-child
-child
etc.
Right now my code to output to the form is
$closed_schools = get_terms('closed_schools', 'orderby=id&order=ASC&hide_empty=0&get=all');
$counter = 0;
foreach ($closed_schools as $close) {
$counter++;
$option = '<fieldset id="'.$close->slug.'"><label for="'.$close->slug.'">'.$close->name.'</label>';
$option .= '<input type="checkbox" name="terms[]" id="'.$close->slug.'" value="'.$close->slug.'">';
$option .= '</fieldset>';
echo $option;
}

Answer 1

I have figured out a solution to my problem. It may not be the most elegant solution but I am able to achieve the layout I was looking for. Instead of get=all I replace that with the parent categories id so it only lists the children of that specific id. Since they are in a checkbox array I then perform several loops under each parent to separate the checkbox's each time just adding a new number $closed_schools_1, $closed_schools_2 and so on. would love to here from anyone who may have an easier less repetitive solution but for time being this will work.
<?php
$closed_schools = get_terms('closed_schools', 'orderby=id&order=ASC&hide_empty=0&child_of=35');
$counter = 0;
foreach ($closed_schools as $closed_school) {
$counter++;
$option = '<fieldset id="'.$closed_school->slug.'">
<label for="'.$closed_school->slug.'">'.$closed_school->name.'</label>';
$option .= '<input type="checkbox" name="closed_school_terms[]" id="'.$closed_school->slug.'" value="'.$closed_school->slug.'">';
$option .= '</fieldset>';
echo $option;
}
?>
<?php
$closed_schools_2 = get_terms('closed_schools', 'orderby=id&order=ASC&hide_empty=0&child_of=55');
$counter = 0;
foreach ($closed_schools_2 as $closed_school_2) {
$counter++;
$option_2 = '<fieldset id="'.$closed_school_2->slug.'">
<label for="'.$closed_school_2->slug.'">'.$closed_school_#->name.'</label>';
$option_2 .= '<input type="checkbox" name="closed_school_terms[]" id="'.$closed_school_2->slug.'" value="'.$closed_school_2->slug.'">';
$option_2 .= '</fieldset>';
echo $option_2;
}
?>