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run code in 200+ 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 7.2.0 - 7.2.6
Warning: Use of undefined constant APP_PATH - assumed 'APP_PATH' (this will throw an Error in a future version of PHP) in /in/LXvSv on line 5 string(4) "blub" string(38) "APP_PATH/vendor/config/config.blub.php" bool(false)
Output for 4.3.0 - 7.1.20
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)