Warning: Use of undefined constant STDERR - assumed 'STDERR' (this will throw an Error in a future version of PHP) in C:\xampp\htdocs\ddb-new\tools\diar6b4-r2-role-matrix.php on line 18

Fatal error: Uncaught TypeError: fwrite() expects parameter 1 to be resource, string given in C:\xampp\htdocs\ddb-new\tools\diar6b4-r2-role-matrix.php:18 Stack trace: #0 C:\xampp\htdocs\ddb-new\tools\diar6b4-r2-role-matrix.php(18): fwrite('STDERR', 'DIAR_6B_4_R2_RO...') #1 {main} thrown in C:\xampp\htdocs\ddb-new\tools\diar6b4-r2-role-matrix.php on line 18