3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo substr("1c72f7597f1aa9e994f648342a", 1); // возвращает "d"
based on bZXSk
Output for 4.3.0 - 5.0.5, 5.1.1 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
c72f7597f1aa9e994f648342a
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/GdH4n on line 2
Process exited with code 255.