3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $password = 'zzzzzzzzzz'; do { $hash = hash_hmac('sha512', ++$password, 'some key') } while(strpos($hash, "\0") == false); echo $password;
Output for 5.3.0 - 5.4.28
Parse error: syntax error, unexpected '}' in /in/aSDnW on line 7
Process exited with code 255.