How to Create Treelike Structure

function_traverse_hierarcy_data.php

protected function traverseData($programs, $parentId=0)
{
	$data = array();
	
	foreach ($programs as $id => $program) {
		if ($program['parent'] == $parentId) {
			$nodes = $this->traverseData($programs, $program['id']);
			
			$obj = new StdClass;
			$obj->text = $program['name'];
			$obj->icon = 'fa fa-file';
			$obj->href = '#program-'.$program['id'];
			if ($nodes) { $obj->nodes = $nodes; }

			$data[] = $obj;
		}
	}

	return $data;
}

gistfile1.txt

Result:

[
  {
    "text":"SEN",
    "icon":"fa fa-file",
    "href":"#program-54",
    "nodes":
    [
      {
      ...
      }
    ]
  },
  ...
]