Warning: Use of undefined constant DIR - assumed 'DIR' (this will throw an Error in a future version of PHP) in C:\xampp\htdocs\dip\wp-blog-header.php on line 23

Warning: require_once(DIR/wp-load.php): failed to open stream: No such file or directory in C:\xampp\htdocs\dip\wp-blog-header.php on line 23

Fatal error: require_once(): Failed opening required 'DIR/wp-load.php' (include_path='C:\xampp\php\PEAR') in C:\xampp\htdocs\dip\wp-blog-header.php on line 23