	static function validUTF($string) {
		if(!mb_check_encoding($string, 'UTF-8') OR !($string === mb_convert_encoding(mb_convert_encoding($string, 'UTF-32', 'UTF-8' ), 'UTF-8', 'UTF-32'))) {
			return false;
		}
		return true;
	}
The software constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.