3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $str = '[{"hello":"dolly", "bob":{"a":"is your uncle", "b":"is not your uncle"}}]'; var_dump(strlen($str)); var_dump(strlen(pack('*H', $str)));
Output for 5.3.22 - 7.3.1
int(73) Warning: pack(): Type *: unknown format code in /in/lfdi3 on line 4 int(0)