3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(unpack('V', "\x44\x44\x44\x44"));
Output for 4.3.5 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
array(1) { [1]=> int(1145324612) }
Output for 4.3.0 - 4.3.4
array(1) { [""]=> int(1145324612) }