Fatal error: Uncaught Error: Undefined constant "DATABASE_HOST" in /home/u984871091/domains/gracious.in/public_html/Pharmacy-2023/db/db_connect.php:15 Stack trace: #0 /home/u984871091/domains/gracious.in/public_html/Pharmacy-2023/pm.php(4): DatabaseConnection->__construct() #1 {main} thrown in /home/u984871091/domains/gracious.in/public_html/Pharmacy-2023/db/db_connect.php on line 15