3v4l.org

run code in 300+ PHP versions simultaneously
<?php $phone = 19996096956; if(is_numeric($phone) && strlen($phone) > 9 && strlen($phone) < 12) { $ddd = substr($phone, 0, 2); $block1 = substr($phone, 3, 5); $block2 = substr($phone, 5, 9); print($ddd); print($block1); print($block2); }

preferences:
39.29 ms | 402 KiB | 5 Q