3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(base64_decode(base64_encode("foo") . chr(0).chr(1).chr(128)));
Output for 4.3.0 - 5.6.21, hhvm-3.10.0, 7.0.0 - 7.1.0
string(3) "foo"
Output for hhvm-3.12.0

Process exited with code 137.