3v4l.org

run code in 300+ PHP versions simultaneously
<?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);
Output for 7.1.25 - 7.1.28, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.14, 8.4.1 - 8.4.2
**** **** disaster was a catastrophic nuclear accident that occurred on 26 **** 1986, in the ****. 4 nuclear reactor at the **** **** **** ****, near the city of ****, in the north of the **** ****.
preferences:
76.37 ms | 408 KiB | 5 Q