3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = '+11234567890'; vprintf('%s-%s-%s', sscanf($string, '+1%3s%3s%4s')); echo "\n---\n"; echo implode('-', sscanf($string, '+1%3s%3s%4s'));
Output for 4.3.11, 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
123-456-7890 --- 123-456-7890
preferences:
124.77 ms | 402 KiB | 122 Q