final public function escapeValues (array $values) : array
	{
		$sanitizedValues = [];
		foreach ($values as $key => $value):
			$key 					= $this->escapeValue($key);
			$sanitizedValues[$key]  = (is_array($value)) ? $this->escapeValues($value) : $this->escapeValue($value);
		endforeach;
		return $sanitizedValues;
	}