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<?php $a = "Darsstar"; $b = $a . "\r\n"; if ($return = preg_match('/^[A-Z][a-z]++$/', $a)) { var_dump($return, 'A zonder D'); } if (preg_match('/^[A-Z][a-z]++$/', $b)) { var_dump($return, 'B zonder D'); } if (preg_match('/^[A-Z][a-z]++$/D', $a)) { var_dump($return, 'A met D'); } if (preg_match('/^[A-Z][a-z]++$/D', $b)) { var_dump($return, 'B met D'); }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
int(1) string(10) "A zonder D" int(1) string(7) "A met D"