3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo unpack("H*", '\xdc\x62\x65rschuss');
Output for 5.4.0 - 7.1.0
Notice: Array to string conversion in /in/cMMFs on line 2 Array
Output for 4.3.0 - 4.3.9, 4.3.11 - 5.0.2, 5.0.5 - 5.3.29
Array
Output for 4.3.10, 5.0.3 - 5.0.4
Warning: unpack(): Type H: outside of string in /in/cMMFs on line 2 Array