Extended Woocommerce Variation Class

Woo_WC_Product_Variable.php

<?php

class Woo_WC_Product_Variable extends WC_Product_Variable {
	public function get_all_variations() {
		$available_variations = array();
		foreach($this->get_children() as $child_id){
			$variation = wc_get_product($child_id);
			$available_variations[] = $this->get_available_variation($variation);
		}

		return array_values(array_filter($available_variations));
	}
}