3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_replace('/[^[:print:]]/u', 'x', "你"));
Output for 5.5.10 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.13
string(3) "你"
Output for 5.5.0 - 5.5.9
string(1) "x"
preferences:
80.89 ms | 406 KiB | 5 Q