A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_database_driver::open($save_path, $name) should either be compatible with SessionHandlerInterface::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_database_driver.php

Line Number: 143

Backtrace:

File: /var/www/varient/application/core/Core_Controller.php
Line: 7
Function: __construct

File: /var/www/varient/application/core/Core_Controller.php
Line: 283
Function: __construct

File: /var/www/varient/application/controllers/Home_controller.php
Line: 7
Function: __construct

File: /var/www/varient/index.php
Line: 467
Function: require_once