3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Filesystem { const DISABLED = 0; const DEBUG = 1; const INFO = 2; const WARN = 4; const ERROR = 8; private static $ERROR_LEVELS = array(self::DISABLED, self::DEBUG, self::INFO, self::WARN, self::ERROR); public static $DEFAULT_LEVEL = 6; } echo !(Filesystem::$DEFAULT_LEVEL & Filesystem::ERROR);
Output for 5.2.13 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
1
Output for hhvm-3.10.0

Process exited with code 153.