3v4l.org

run code in 300+ PHP versions simultaneously
<?php $phone_no=918553649086; $length=strlen($phone_no); if($length==12){ $nineone = substr($phone_no, 0, 2); if($nineone==91){ $phone_no=substr($phone_no,-10); echo $phone_no; //echo $nineone; } }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
8553649086

preferences:
207.67 ms | 405 KiB | 307 Q