3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(pack('C/C/C/C', '9223372036854775807'));
Output for 4.3.2 - 7.2.0
Warning: pack(): 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)