Warning: Use of undefined constant APP_PATH - assumed 'APP_PATH' (this will throw an Error in a future version of PHP) in C:\phpstudy_pro\WWW\frphp\fr.php on line 462

Warning: require(APP_PATHconf/config.php): failed to open stream: No such file or directory in C:\phpstudy_pro\WWW\frphp\fr.php on line 462

Fatal error: require(): Failed opening required 'APP_PATHconf/config.php' (include_path='.;C:\php\pear') in C:\phpstudy_pro\WWW\frphp\fr.php on line 462