Warning: require(../lib/function.php): failed to open stream: No such file or directory in C:\xampp\htdocs\web_booking\page\pageregister.php on line 37

Fatal error: require(): Failed opening required '../lib/function.php' (include_path='C:\xampp\php\PEAR') in C:\xampp\htdocs\web_booking\page\pageregister.php on line 37