3v4l.org

run code in 300+ PHP versions simultaneously
<?php $phone = '793071855XX2'; var_dump(preg_replace("~[^0-9]~", '0', $phone));
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
string(12) "793071855002"
preferences:
186.76 ms | 404 KiB | 292 Q