3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = 'слово слово слово слово'; echo preg_replace("/\w+\K/u", '*', $string);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
слово* слово* слово* слово*
preferences:
37.03 ms | 1110 KiB | 4 Q