3v4l.org

run code in 300+ PHP versions simultaneously
<?php $sPhoneNumber = "+3999999999999"; $sPhoneNumber = "3999999999999"; $sPhoneNumber = "39 99999999999"; $sPhoneNumber = "0039 99999999999"; $sPhoneNumber = "+ 39 999 99999999"; $sPhoneNumber = "+003999999999999"; $result = preg_replace('~^[0\D]++|\D++~', '', $sPhoneNumber); echo $result;
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.5 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
3999999999999

preferences:
163 ms | 408 KiB | 5 Q