Online PHP editor | refs for JZstbn

<?php $string = "The Chernobyl disaster was a catastrophic nuclear accident that occurred on 26 April 1986, in the No. 4 nuclear reactor at the Chernobyl Nuclear Power Plant, near the city of Pripyat, in the north of the Ukrainian SSR."; $pattern = '%[A-Z]\w+%'; $replacement = "****"; $newString = preg_filter($pattern, $replacement, $string); print($newString);