3v4l.org

run code in 300+ PHP versions simultaneously
<?php $phone = "09350943256"; $result = substr($phone, 0, 4); $result .= "***"; $result .= substr($phone, 7, 4); echo $result;
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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
0935***3256
preferences:
100.22 ms | 1944 KiB | 4 Q