3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $host = 'blub'; if ($host) { $configFileName = APP_PATH . '/vendor/config/config.' . $host . '.php'; } var_dump($host, $configFileName, !isset($configFileName));
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Notice: Use of undefined constant APP_PATH - assumed 'APP_PATH' in /in/LXvSv on line 5 string(4) "blub" string(38) "APP_PATH/vendor/config/config.blub.php" bool(false)
Output for hhvm-3.10.0

Process exited with code 153.