Warning: Undefined variable $conn in /home/brandisity/public_html/index.php on line 9

Fatal error: Uncaught TypeError: mysqli_real_escape_string(): Argument #1 ($mysql) must be of type mysqli, null given in /home/brandisity/public_html/index.php:9 Stack trace: #0 /home/brandisity/public_html/index.php(9): mysqli_real_escape_string(NULL, '') #1 {main} thrown in /home/brandisity/public_html/index.php on line 9