Inventory_Presser_Plugin::meta_query_contains_clause( mixed $meta_query, mixed $key, mixed $value, mixed $compare, mixed $type )

	public static function meta_query_contains_clause( $meta_query, $key, $value, $compare, $type ) {
		if ( is_array( $meta_query ) ) {
			if ( isset( $meta_query['key'] )
				&& isset( $meta_query['value'] )
				&& isset( $meta_query['compare'] )
				&& isset( $meta_query['type'] )
			) {
				return $meta_query['key'] === $key
				&& $meta_query['value'] === $value
				&& $meta_query['compare'] === $compare
				&& $meta_query['type'] === $type;
			}

			foreach ( $meta_query as $another ) {
				return self::meta_query_contains_clause( $another, $key, $value, $compare, $type );
			}
		}
		return false;
	}