Parse degree before, name, surname and degree after from string.

parse.php

<?php

$list = array(
	'Ing. Peter Jablčko',
	'Ondrej koláč',
	'Miro Hámor PhD.',
	'Ing. Palo Kámor PhD.',
	'Ing. Dr. Palo Kamor PhD.',
	'Ing. Dr. Palo Kamor PhD. xxx. '
);

foreach ($list as $name) {
	$pattern = '/^(?P<degreeBefore>.+[.]\s*)?\s*(?P<name>[^.\s]+)\s+(?P<surname>[^.\s]+)\s*(?P<degreeAfter>.+[.]\s*)?$/';
	preg_match($pattern, trim($name), $results);
	var_dump($results);
}