3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(pack('C/C/C/C', '9223372036854775807'));
Output for 4.3.2 - 5.6.28, 7.0.0 - 7.1.0
Warning: pack(): Type /: unknown format code in /in/YGZ8f on line 2 bool(false)
Output for hhvm-3.10.0 - 3.12.0
Warning: Invalid argument: Type /: unknown format code in /in/YGZ8f on line 2 bool(false)
Output for 4.3.0 - 4.3.1
Warning: pack() [http://www.php.net/function.pack]: Type /: unknown format code in /in/YGZ8f on line 2 bool(false)