Mustache/examples/grand_parent_context/GrandParentContext.php

<?php

class GrandParentContext {
	public $grand_parent_id = 'grand_parent1';
	public $parent_contexts = array();

	public function __construct() {
		$this->parent_contexts[] = array('parent_id' => 'parent1', 'child_contexts' => array(
			array('child_id' => 'parent1-child1'),
			array('child_id' => 'parent1-child2')
		));

		$parent2 = new stdClass();
		$parent2->parent_id = 'parent2';
		$parent2->child_contexts = array(
			array('child_id' => 'parent2-child1'),
			array('child_id' => 'parent2-child2')
		);

		$this->parent_contexts[] = $parent2;
	}
}